57408983856 has 120 divisors (see below), whose sum is σ = 183796048800. Its totient is φ = 16386628608.

The previous prime is 57408983851. The next prime is 57408983887. The reversal of 57408983856 is 65838980475.

57408983856 is a `hidden beast` number, since 574 + 0 + 8 + 9 + 8 + 3 + 8 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 57408983793 and 57408983802.

It is not an unprimeable number, because it can be changed into a prime (57408983851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030246 + ... + 1084538.

It is an arithmetic number, because the mean of its divisors is an integer number (1531633740).

Almost surely, 2^57408983856 is an apocalyptic number.

57408983856 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 57408983856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91898024400).

57408983856 is an abundant number, since it is smaller than the sum of its proper divisors (126387064944).

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

57408983856 is a wasteful number, since it uses less digits than its factorization.

57408983856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55363 (or 55354 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 63.

The spelling of 57408983856 in words is "fifty-seven billion, four hundred eight million, nine hundred eighty-three thousand, eight hundred fifty-six".