189536553012 has 12 divisors (see below), whose sum is σ = 442251957056. Its totient is φ = 63178851000.

The previous prime is 189536552977. The next prime is 189536553029. The reversal of 189536553012 is 210355635981.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7897356364 + ... + 7897356387.

Almost surely, 2^189536553012 is an apocalyptic number.

189536553012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189536553012 is an abundant number, since it is smaller than the sum of its proper divisors (252715404044).

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

189536553012 is a wasteful number, since it uses less digits than its factorization.

189536553012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15794712758 (or 15794712756 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 189536553012 in words is "one hundred eighty-nine billion, five hundred thirty-six million, five hundred fifty-three thousand, twelve".