308187201968 has 30 divisors (see below), whose sum is σ = 602738119836. Its totient is φ = 152642096256.

The previous prime is 308187201961. The next prime is 308187201979. The reversal of 308187201968 is 869102781803.

It is not an unprimeable number, because it can be changed into a prime (308187201961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22963196 + ... + 22976612.

Almost surely, 2^308187201968 is an apocalyptic number.

It is an amenable number.

308187201968 is a deficient number, since it is larger than the sum of its proper divisors (294550917868).

308187201968 is an frugal number, since it uses more digits than its factorization.

308187201968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26949 (or 13526 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 308187201968 in words is "three hundred eight billion, one hundred eighty-seven million, two hundred one thousand, nine hundred sixty-eight".