189057562057 has 24 divisors (see below), whose sum is σ = 249306691200. Its totient is φ = 141711153696.

The previous prime is 189057562049. The next prime is 189057562079. The reversal of 189057562057 is 750265750981.

It is not a de Polignac number, because 189057562057 - 2³ = 189057562049 is a prime.

It is the 434808-th Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 189057561989 and 189057562007.

It is not an unprimeable number, because it can be changed into a prime (189057562357) by changing a digit.

It is a nontrivial repunit in base 434807.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7798257 + ... + 7822462.

It is an arithmetic number, because the mean of its divisors is an integer number (10387778800).

Almost surely, 2^189057562057 is an apocalyptic number.

It is an amenable number.

189057562057 is a deficient number, since it is larger than the sum of its proper divisors (60249129143).

189057562057 is a wasteful number, since it uses less digits than its factorization.

189057562057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15620765 (or 15620758 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 55.

The spelling of 189057562057 in words is "one hundred eighty-nine billion, fifty-seven million, five hundred sixty-two thousand, fifty-seven".