308797987312 has 20 divisors (see below), whose sum is σ = 629785369480. Its totient is φ = 146272730688.

The previous prime is 308797987283. The next prime is 308797987397. The reversal of 308797987312 is 213789797803.

It is a super-2 number, since 2×308797987312² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507891123 + ... + 507891730.

It is an arithmetic number, because the mean of its divisors is an integer number (31489268474).

Almost surely, 2^308797987312 is an apocalyptic number.

It is an amenable number.

308797987312 is an abundant number, since it is smaller than the sum of its proper divisors (320987382168).

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

308797987312 is a wasteful number, since it uses less digits than its factorization.

308797987312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015782880 (or 1015782874 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 64.

The spelling of 308797987312 in words is "three hundred eight billion, seven hundred ninety-seven million, nine hundred eighty-seven thousand, three hundred twelve".