31146954947328 has 72 divisors (see below), whose sum is σ = 90432352172736. Its totient is φ = 9438471193600.

The previous prime is 31146954947309. The next prime is 31146954947333. The reversal of 31146954947328 is 82374945964113.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843442958 + ... + 1843459853.

It is an arithmetic number, because the mean of its divisors is an integer number (1256004891288).

Almost surely, 2^{31146954947328} is an apocalyptic number.

It is an amenable number.

31146954947328 is an abundant number, since it is smaller than the sum of its proper divisors (59285397225408).

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

31146954947328 is a wasteful number, since it uses less digits than its factorization.

31146954947328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686902841 (or 3686902827 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 66.

The spelling of 31146954947328 in words is "thirty-one trillion, one hundred forty-six billion, nine hundred fifty-four million, nine hundred forty-seven thousand, three hundred twenty-eight".