309311984631372 has 48 divisors (see below), whose sum is σ = 738830522852352. Its totient is φ = 100679211622080.

The previous prime is 309311984631337. The next prime is 309311984631383. The reversal of 309311984631372 is 273136489113903.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1152329308 + ... + 1152597699.

It is an arithmetic number, because the mean of its divisors is an integer number (15392302559424).

Almost surely, 2^{309311984631372} is an apocalyptic number.

It is an amenable number.

309311984631372 is an abundant number, since it is smaller than the sum of its proper divisors (429518538220980).

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

309311984631372 is a wasteful number, since it uses less digits than its factorization.

309311984631372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304927278 (or 2304927276 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 60.

The spelling of 309311984631372 in words is "three hundred nine trillion, three hundred eleven billion, nine hundred eighty-four million, six hundred thirty-one thousand, three hundred seventy-two".