12139094920500 has 144 divisors (see below), whose sum is σ = 39329793192144. Its totient is φ = 3149602963200.

The previous prime is 12139094920499. The next prime is 12139094920501. The reversal of 12139094920500 is 502949093121.

12139094920500 is a `hidden beast` number, since 1 + 2 + 1 + 39 + 0 + 94 + 9 + 20 + 500 = 666.

It is an interprime number because it is at equal distance from previous prime (12139094920499) and next prime (12139094920501).

It can be written as a sum of positive squares in 8 ways, for example, as 161999810064 + 11977095110436 = 402492^2 + 3460794^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12139094920501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36287239 + ... + 36620238.

Almost surely, 2^{12139094920500} is an apocalyptic number.

12139094920500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12139094920500 is an abundant number, since it is smaller than the sum of its proper divisors (27190698271644).

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

12139094920500 is a wasteful number, since it uses less digits than its factorization.

12139094920500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72907539 (or 72907524 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 12139094920500 in words is "twelve trillion, one hundred thirty-nine billion, ninety-four million, nine hundred twenty thousand, five hundred".