309923088072 has 32 divisors (see below), whose sum is σ = 834408314880. Its totient is φ = 95360950080.

The previous prime is 309923088053. The next prime is 309923088077. The reversal of 309923088072 is 270880329903.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (309923088077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496671304 + ... + 496671927.

It is an arithmetic number, because the mean of its divisors is an integer number (26075259840).

Almost surely, 2^309923088072 is an apocalyptic number.

It is an amenable number.

309923088072 is an abundant number, since it is smaller than the sum of its proper divisors (524485226808).

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

309923088072 is a wasteful number, since it uses less digits than its factorization.

309923088072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993343253 (or 993343249 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 309923088072 in words is "three hundred nine billion, nine hundred twenty-three million, eighty-eight thousand, seventy-two".