189678522432 has 112 divisors (see below), whose sum is σ = 603738736640. Its totient is φ = 51341548032.

The previous prime is 189678522427. The next prime is 189678522443. The reversal of 189678522432 is 234225876981.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3688408 + ... + 3739479.

Almost surely, 2^189678522432 is an apocalyptic number.

189678522432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189678522432 is an abundant number, since it is smaller than the sum of its proper divisors (414060214208).

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

189678522432 is a wasteful number, since it uses less digits than its factorization.

189678522432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7427928 (or 7427918 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The spelling of 189678522432 in words is "one hundred eighty-nine billion, six hundred seventy-eight million, five hundred twenty-two thousand, four hundred thirty-two".