13812920328 has 32 divisors (see below), whose sum is σ = 34920309600. Its totient is φ = 4552572288.

The previous prime is 13812920323. The next prime is 13812920437. The reversal of 13812920328 is 82302921831.

It is not an unprimeable number, because it can be changed into a prime (13812920323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3231226 + ... + 3235497.

It is an arithmetic number, because the mean of its divisors is an integer number (1091259675).

Almost surely, 2^13812920328 is an apocalyptic number.

It is an amenable number.

13812920328 is an abundant number, since it is smaller than the sum of its proper divisors (21107389272).

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

13812920328 is a wasteful number, since it uses less digits than its factorization.

13812920328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6466821 (or 6466817 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 13812920328 in words is "thirteen billion, eight hundred twelve million, nine hundred twenty thousand, three hundred twenty-eight".