52139216121012 has 96 divisors (see below), whose sum is σ = 145603047260160. Its totient is φ = 16087836647520.

The previous prime is 52139216121011. The next prime is 52139216121037. The reversal of 52139216121012 is 21012161293125.

52139216121012 is a `hidden beast` number, since 5 + 2 + 1 + 3 + 9 + 21 + 612 + 1 + 0 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52139216121011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338471748 + ... + 338625755.

It is an arithmetic number, because the mean of its divisors is an integer number (1516698408960).

Almost surely, 2^{52139216121012} is an apocalyptic number.

It is an amenable number.

52139216121012 is an abundant number, since it is smaller than the sum of its proper divisors (93463831139148).

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

52139216121012 is a wasteful number, since it uses less digits than its factorization.

52139216121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677097570 (or 677097562 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 52139216121012 in words is "fifty-two trillion, one hundred thirty-nine billion, two hundred sixteen million, one hundred twenty-one thousand, twelve".