6139643869512 has 48 divisors (see below), whose sum is σ = 17606331688140. Its totient is φ = 1926162782208.

The previous prime is 6139643869483. The next prime is 6139643869517. The reversal of 6139643869512 is 2159683469316.

6139643869512 is a `hidden beast` number, since 6 + 1 + 3 + 96 + 438 + 69 + 51 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6130348210116 + 9295659396 = 2475954^2 + 96414^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6139643869512.

It is not an unprimeable number, because it can be changed into a prime (6139643869517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2508023233 + ... + 2508025680.

Almost surely, 2^{6139643869512} is an apocalyptic number.

It is an amenable number.

6139643869512 is an abundant number, since it is smaller than the sum of its proper divisors (11466687818628).

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

6139643869512 is a wasteful number, since it uses less digits than its factorization.

6139643869512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016048942 (or 5016048935 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The spelling of 6139643869512 in words is "six trillion, one hundred thirty-nine billion, six hundred forty-three million, eight hundred sixty-nine thousand, five hundred twelve".