308720790864 has 60 divisors (see below), whose sum is σ = 864030091392. Its totient is φ = 102902088000.

The previous prime is 308720790827. The next prime is 308720790869. The reversal of 308720790864 is 468097027803.

It is a self number, because there is not a number n which added to its sum of digits gives 308720790864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308720790869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4346839 + ... + 4417289.

Almost surely, 2^308720790864 is an apocalyptic number.

It is an amenable number.

308720790864 is an abundant number, since it is smaller than the sum of its proper divisors (555309300528).

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

308720790864 is a wasteful number, since it uses less digits than its factorization.

308720790864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100896 (or 100887 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 308720790864 in words is "three hundred eight billion, seven hundred twenty million, seven hundred ninety thousand, eight hundred sixty-four".