308312029977 has 16 divisors (see below), whose sum is σ = 471162734592. Its totient is φ = 175670580240.

The previous prime is 308312029919. The next prime is 308312029981. The reversal of 308312029977 is 779920213803.

It is not a de Polignac number, because 308312029977 - 2⁶ = 308312029913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (308312029577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21147649 + ... + 21162222.

It is an arithmetic number, because the mean of its divisors is an integer number (29447670912).

Almost surely, 2^308312029977 is an apocalyptic number.

It is an amenable number.

308312029977 is a deficient number, since it is larger than the sum of its proper divisors (162850704615).

308312029977 is a wasteful number, since it uses less digits than its factorization.

308312029977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42310228.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The spelling of 308312029977 in words is "three hundred eight billion, three hundred twelve million, twenty-nine thousand, nine hundred seventy-seven".