189522681764 has 24 divisors (see below), whose sum is σ = 357192501120. Its totient is φ = 87468299424.

The previous prime is 189522681727. The next prime is 189522681767. The reversal of 189522681764 is 467186225981.

It is not an unprimeable number, because it can be changed into a prime (189522681767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1448357 + ... + 1573779.

It is an arithmetic number, because the mean of its divisors is an integer number (14883020880).

Almost surely, 2^189522681764 is an apocalyptic number.

It is an amenable number.

189522681764 is a deficient number, since it is larger than the sum of its proper divisors (167669819356).

189522681764 is a wasteful number, since it uses less digits than its factorization.

189522681764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154499 (or 154497 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 59.

The spelling of 189522681764 in words is "one hundred eighty-nine billion, five hundred twenty-two million, six hundred eighty-one thousand, seven hundred sixty-four".