57697393842 has 24 divisors (see below), whose sum is σ = 136375658640. Its totient is φ = 17484058680.

The previous prime is 57697393829. The next prime is 57697393847. The reversal of 57697393842 is 24839379675.

57697393842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57697393842.

It is not an unprimeable number, because it can be changed into a prime (57697393847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145700292 + ... + 145700687.

It is an arithmetic number, because the mean of its divisors is an integer number (5682319110).

Almost surely, 2^57697393842 is an apocalyptic number.

57697393842 is an abundant number, since it is smaller than the sum of its proper divisors (78678264798).

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

57697393842 is a wasteful number, since it uses less digits than its factorization.

57697393842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291400998 (or 291400995 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 63.

The spelling of 57697393842 in words is "fifty-seven billion, six hundred ninety-seven million, three hundred ninety-three thousand, eight hundred forty-two".