12920038768 has 80 divisors (see below), whose sum is σ = 32148942336. Its totient is φ = 4888984320.

The previous prime is 12920038757. The next prime is 12920038783. The reversal of 12920038768 is 86783002921.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159418 + ... + 226393.

Almost surely, 2^12920038768 is an apocalyptic number.

It is an amenable number.

12920038768 is an abundant number, since it is smaller than the sum of its proper divisors (19228903568).

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

12920038768 is a wasteful number, since it uses less digits than its factorization.

12920038768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385862 (or 385856 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 12920038768 in words is "twelve billion, nine hundred twenty million, thirty-eight thousand, seven hundred sixty-eight".