57865827516 has 24 divisors (see below), whose sum is σ = 154308873600. Its totient is φ = 16533093552.

The previous prime is 57865827479. The next prime is 57865827529. The reversal of 57865827516 is 61572856875.

It is a super-2 number, since 2×57865827516² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57865827516.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344439366 + ... + 344439533.

It is an arithmetic number, because the mean of its divisors is an integer number (6429536400).

Almost surely, 2^57865827516 is an apocalyptic number.

It is an amenable number.

57865827516 is an abundant number, since it is smaller than the sum of its proper divisors (96443046084).

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

57865827516 is a wasteful number, since it uses less digits than its factorization.

57865827516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688878913 (or 688878911 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 60.

The spelling of 57865827516 in words is "fifty-seven billion, eight hundred sixty-five million, eight hundred twenty-seven thousand, five hundred sixteen".