57857139552 has 96 divisors (see below), whose sum is σ = 159933916800. Its totient is φ = 18263190528.

The previous prime is 57857139547. The next prime is 57857139577. The reversal of 57857139552 is 25593175875.

57857139552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 57857139492 and 57857139501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5935899 + ... + 5945637.

It is an arithmetic number, because the mean of its divisors is an integer number (1665978300).

Almost surely, 2^57857139552 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 57857139552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79966958400).

57857139552 is an abundant number, since it is smaller than the sum of its proper divisors (102076777248).

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

57857139552 is a wasteful number, since it uses less digits than its factorization.

57857139552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13028 (or 13020 counting only the distinct ones).

The product of its digits is 13230000, while the sum is 57.

The spelling of 57857139552 in words is "fifty-seven billion, eight hundred fifty-seven million, one hundred thirty-nine thousand, five hundred fifty-two".