31464813372 has 96 divisors (see below), whose sum is σ = 78674706432. Its totient is φ = 9764891136.

The previous prime is 31464813361. The next prime is 31464813389. The reversal of 31464813372 is 27331846413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1849288 + ... + 1866224.

It is an arithmetic number, because the mean of its divisors is an integer number (819528192).

Almost surely, 2^31464813372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31464813372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39337353216).

31464813372 is an abundant number, since it is smaller than the sum of its proper divisors (47209893060).

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

31464813372 is a wasteful number, since it uses less digits than its factorization.

31464813372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17147 (or 17145 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The spelling of 31464813372 in words is "thirty-one billion, four hundred sixty-four million, eight hundred thirteen thousand, three hundred seventy-two".