5291981424 has 100 divisors (see below), whose sum is σ = 15405717096. Its totient is φ = 1753723008.

The previous prime is 5291981413. The next prime is 5291981467. The reversal of 5291981424 is 4241891925.

It is a happy number.

5291981424 is a `hidden beast` number, since 52 + 91 + 98 + 1 + 424 = 666.

It is a super-2 number, since 2×5291981424² = 56010134783922135552, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5291981424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 212407 + ... + 236009.

Almost surely, 2^5291981424 is an apocalyptic number.

5291981424 is a gapful number since it is divisible by the number (54) 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 5291981424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7702858548).

5291981424 is an abundant number, since it is smaller than the sum of its proper divisors (10113735672).

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

5291981424 is a wasteful number, since it uses less digits than its factorization.

5291981424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23796 (or 23781 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 5291981424 is about 72746.0062408927. The cubic root of 5291981424 is about 1742.6336810644.

The spelling of 5291981424 in words is "five billion, two hundred ninety-one million, nine hundred eighty-one thousand, four hundred twenty-four".