2157477322764 has 48 divisors (see below), whose sum is σ = 5054691704832. Its totient is φ = 716220957312.

The previous prime is 2157477322753. The next prime is 2157477322807. The reversal of 2157477322764 is 4672237747512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11212552 + ... + 11403344.

It is an arithmetic number, because the mean of its divisors is an integer number (105306077184).

Almost surely, 2^{2157477322764} is an apocalyptic number.

It is an amenable number.

2157477322764 is an abundant number, since it is smaller than the sum of its proper divisors (2897214382068).

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

2157477322764 is a wasteful number, since it uses less digits than its factorization.

2157477322764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194646 (or 194644 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 57.

The spelling of 2157477322764 in words is "two trillion, one hundred fifty-seven billion, four hundred seventy-seven million, three hundred twenty-two thousand, seven hundred sixty-four".