57780621376 has 21 divisors (see below), whose sum is σ = 114662236639. Its totient is φ = 28889349184.

The previous prime is 57780621331. The next prime is 57780621389. The reversal of 57780621376 is 67312608775.

The square root of 57780621376 is 240376.

It is a perfect power (a square), and thus also a powerful number.

57780621376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1907985 + ... + 1938031.

Almost surely, 2^57780621376 is an apocalyptic number.

57780621376 is the 240376-th square number.

It is an amenable number.

57780621376 is a deficient number, since it is larger than the sum of its proper divisors (56881615263).

57780621376 is an frugal number, since it uses more digits than its factorization.

57780621376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60106 (or 30049 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 57780621376 in words is "fifty-seven billion, seven hundred eighty million, six hundred twenty-one thousand, three hundred seventy-six".