57121233028 has 24 divisors (see below), whose sum is σ = 102167352000. Its totient is φ = 27935427168.

The previous prime is 57121233017. The next prime is 57121233073. The reversal of 57121233028 is 82033212175.

It is a junction number, because it is equal to n+sod(n) for n = 57121232984 and 57121233002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561175 + ... + 655102.

It is an arithmetic number, because the mean of its divisors is an integer number (4256973000).

Almost surely, 2^57121233028 is an apocalyptic number.

It is an amenable number.

57121233028 is a deficient number, since it is larger than the sum of its proper divisors (45046118972).

57121233028 is a wasteful number, since it uses less digits than its factorization.

57121233028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216539 (or 1216537 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 57121233028 in words is "fifty-seven billion, one hundred twenty-one million, two hundred thirty-three thousand, twenty-eight".