57720603492 has 36 divisors (see below), whose sum is σ = 146834203516. Its totient is φ = 19117650240.

The previous prime is 57720603397. The next prime is 57720603517. The reversal of 57720603492 is 29430602775.

It can be written as a sum of positive squares in 2 ways, for example, as 5011790436 + 52708813056 = 70794^2 + 229584^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5100559 + ... + 5111862.

Almost surely, 2^57720603492 is an apocalyptic number.

It is an amenable number.

57720603492 is an abundant number, since it is smaller than the sum of its proper divisors (89113600024).

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

57720603492 is a wasteful number, since it uses less digits than its factorization.

57720603492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212588 (or 10212583 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 57720603492 in words is "fifty-seven billion, seven hundred twenty million, six hundred three thousand, four hundred ninety-two".