308613918072 has 64 divisors (see below), whose sum is σ = 788053432320. Its totient is φ = 100669394048.

The previous prime is 308613918071. The next prime is 308613918127. The reversal of 308613918072 is 270819316803.

It is a super-2 number, since 2×308613918072² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308613918071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12493798 + ... + 12518474.

It is an arithmetic number, because the mean of its divisors is an integer number (12313334880).

Almost surely, 2^308613918072 is an apocalyptic number.

It is an amenable number.

308613918072 is an abundant number, since it is smaller than the sum of its proper divisors (479439514248).

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

308613918072 is a wasteful number, since it uses less digits than its factorization.

308613918072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35820 (or 35816 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 308613918072 in words is "three hundred eight billion, six hundred thirteen million, nine hundred eighteen thousand, seventy-two".