57218030308 has 12 divisors (see below), whose sum is σ = 100142547372. Its totient is φ = 28605873920.

The previous prime is 57218030299. The next prime is 57218030323. The reversal of 57218030308 is 80303081275.

It can be written as a sum of positive squares in 2 ways, for example, as 5726251584 + 51491778724 = 75672^2 + 226918^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744085 + ... + 817372.

It is an arithmetic number, because the mean of its divisors is an integer number (8345212281).

Almost surely, 2^57218030308 is an apocalyptic number.

It is an amenable number.

57218030308 is a deficient number, since it is larger than the sum of its proper divisors (42924517064).

57218030308 is a wasteful number, since it uses less digits than its factorization.

57218030308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570622 (or 1570620 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 57218030308 in words is "fifty-seven billion, two hundred eighteen million, thirty thousand, three hundred eight".