308797987311 has 60 divisors (see below), whose sum is σ = 520729612920. Its totient is φ = 180644567040.

The previous prime is 308797987283. The next prime is 308797987397. The reversal of 308797987311 is 113789797803.

308797987311 is a `hidden beast` number, since 308 + 7 + 9 + 7 + 9 + 8 + 7 + 311 = 666.

It is not a de Polignac number, because 308797987311 - 2¹⁴ = 308797970927 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308797987411) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 89323695 + ... + 89327151.

It is an arithmetic number, because the mean of its divisors is an integer number (8678826882).

Almost surely, 2^308797987311 is an apocalyptic number.

308797987311 is a deficient number, since it is larger than the sum of its proper divisors (211931625609).

308797987311 is an frugal number, since it uses more digits than its factorization.

308797987311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966 (or 3500 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 63.

The spelling of 308797987311 in words is "three hundred eight billion, seven hundred ninety-seven million, nine hundred eighty-seven thousand, three hundred eleven".