75921636209912 has 32 divisors (see below), whose sum is σ = 147162938907600. Its totient is φ = 36695174342400.

The previous prime is 75921636209857. The next prime is 75921636209927. The reversal of 75921636209912 is 21990263612957.

It is a super-2 number, since 2×75921636209912² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061745914 + ... + 1061817417.

Almost surely, 2^{75921636209912} is an apocalyptic number.

It is an amenable number.

75921636209912 is a deficient number, since it is larger than the sum of its proper divisors (71241302697688).

75921636209912 is a wasteful number, since it uses less digits than its factorization.

75921636209912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123563487 (or 2123563483 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 62.

The spelling of 75921636209912 in words is "seventy-five trillion, nine hundred twenty-one billion, six hundred thirty-six million, two hundred nine thousand, nine hundred twelve".