57266720791380 has 72 divisors (see below), whose sum is σ = 180142721714592. Its totient is φ = 15271125543072.

The previous prime is 57266720791373. The next prime is 57266720791451. The reversal of 57266720791380 is 8319702766275.

57266720791380 is a `hidden beast` number, since 5 + 7 + 266 + 7 + 207 + 91 + 3 + 80 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5891633082 + ... + 5891642801.

It is an arithmetic number, because the mean of its divisors is an integer number (2501982246036).

Almost surely, 2^{57266720791380} is an apocalyptic number.

It is an amenable number.

57266720791380 is an abundant number, since it is smaller than the sum of its proper divisors (122876000923212).

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

57266720791380 is a wasteful number, since it uses less digits than its factorization.

57266720791380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11783275907 (or 11783275893 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 57266720791380 in words is "fifty-seven trillion, two hundred sixty-six billion, seven hundred twenty million, seven hundred ninety-one thousand, three hundred eighty".