5151291840 has 168 divisors, whose sum is σ = 17744895168. Its totient is φ = 1371617280.

The previous prime is 5151291823. The next prime is 5151291857. The reversal of 5151291840 is 481921515.

5151291840 is a `hidden beast` number, since 51 + 512 + 91 + 8 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (5151291823) and next prime (5151291857).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5151291795 and 5151291804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3544554 + ... + 3546006.

It is an arithmetic number, because the mean of its divisors is an integer number (105624376).

Almost surely, 2^5151291840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5151291840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8872447584).

5151291840 is an abundant number, since it is smaller than the sum of its proper divisors (12593603328).

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

5151291840 is a wasteful number, since it uses less digits than its factorization.

5151291840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707 (or 2694 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 5151291840 is about 71772.5005834407. The cubic root of 5151291840 is about 1727.0518847207.

The spelling of 5151291840 in words is "five billion, one hundred fifty-one million, two hundred ninety-one thousand, eight hundred forty".