12758531612 has 6 divisors (see below), whose sum is σ = 22327430328. Its totient is φ = 6379265804.

The previous prime is 12758531581. The next prime is 12758531629. The reversal of 12758531612 is 21613585721.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12758531612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1594816448 + ... + 1594816455.

It is an arithmetic number, because the mean of its divisors is an integer number (3721238388).

Almost surely, 2^12758531612 is an apocalyptic number.

It is an amenable number.

12758531612 is a deficient number, since it is larger than the sum of its proper divisors (9568898716).

12758531612 is a wasteful number, since it uses less digits than its factorization.

12758531612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189632907 (or 3189632905 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The spelling of 12758531612 in words is "twelve billion, seven hundred fifty-eight million, five hundred thirty-one thousand, six hundred twelve".