57232707840 has 1440 divisors, whose sum is σ = 261554033664. Its totient is φ = 11605524480.

The previous prime is 57232707827. The next prime is 57232707859. The reversal of 57232707840 is 4870723275.

57232707840 is a `hidden beast` number, since 572 + 3 + 2 + 7 + 0 + 78 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 534885067 + ... + 534885173.

Almost surely, 2^57232707840 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 57232707840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130777016832).

57232707840 is an abundant number, since it is smaller than the sum of its proper divisors (204321325824).

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

57232707840 is a wasteful number, since it uses less digits than its factorization.

57232707840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 57232707840 in words is "fifty-seven billion, two hundred thirty-two million, seven hundred seven thousand, eight hundred forty".