189711516012 has 24 divisors (see below), whose sum is σ = 442667288112. Its totient is φ = 63236160000.

The previous prime is 189711516011. The next prime is 189711516019. The reversal of 189711516012 is 210615117981.

It is not an unprimeable number, because it can be changed into a prime (189711516011) 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, 1281012 + ... + 1421412.

It is an arithmetic number, because the mean of its divisors is an integer number (18444470338).

Almost surely, 2^189711516012 is an apocalyptic number.

189711516012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189711516012 is an abundant number, since it is smaller than the sum of its proper divisors (252955772100).

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

189711516012 is a wasteful number, since it uses less digits than its factorization.

189711516012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253009 (or 253007 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 42.

The spelling of 189711516012 in words is "one hundred eighty-nine billion, seven hundred eleven million, five hundred sixteen thousand, twelve".