57069535312 has 80 divisors (see below), whose sum is σ = 120780840960. Its totient is φ = 26041276800.

The previous prime is 57069535283. The next prime is 57069535331. The reversal of 57069535312 is 21353596075.

It is a super-2 number, since 2×57069535312² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 774739 + ... + 845197.

It is an arithmetic number, because the mean of its divisors is an integer number (1509760512).

Almost surely, 2^57069535312 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 57069535312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60390420480).

57069535312 is an abundant number, since it is smaller than the sum of its proper divisors (63711305648).

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

57069535312 is a wasteful number, since it uses less digits than its factorization.

57069535312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70592 (or 70586 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 46.

The spelling of 57069535312 in words is "fifty-seven billion, sixty-nine million, five hundred thirty-five thousand, three hundred twelve".