5291891136 has 224 divisors, whose sum is σ = 17840309760. Its totient is φ = 1506816000.

The previous prime is 5291891123. The next prime is 5291891149. The reversal of 5291891136 is 6311981925.

5291891136 is a `hidden beast` number, since 529 + 1 + 8 + 9 + 113 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (5291891123) and next prime (5291891149).

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×5291891136² = 56008223590550740992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5291891091 and 5291891100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4849951 + ... + 4851041.

It is an arithmetic number, because the mean of its divisors is an integer number (79644240).

Almost surely, 2^5291891136 is an apocalyptic number.

5291891136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5291891136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8920154880).

5291891136 is an abundant number, since it is smaller than the sum of its proper divisors (12548418624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5291891136 is a wasteful number, since it uses less digits than its factorization.

5291891136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520 (or 1504 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 5291891136 is about 72745.3856680958. The cubic root of 5291891136 is about 1742.6237704851.

The spelling of 5291891136 in words is "five billion, two hundred ninety-one million, eight hundred ninety-one thousand, one hundred thirty-six".