31734470472 has 32 divisors (see below), whose sum is σ = 83511765600. Its totient is φ = 10021411584.

The previous prime is 31734470447. The next prime is 31734470473. The reversal of 31734470472 is 27407443713.

It is a super-2 number, since 2×31734470472² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31734470473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34796113 + ... + 34797024.

It is an arithmetic number, because the mean of its divisors is an integer number (2609742675).

Almost surely, 2^31734470472 is an apocalyptic number.

It is an amenable number.

31734470472 is an abundant number, since it is smaller than the sum of its proper divisors (51777295128).

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

31734470472 is a wasteful number, since it uses less digits than its factorization.

31734470472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69593165 (or 69593161 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 42.

The spelling of 31734470472 in words is "thirty-one billion, seven hundred thirty-four million, four hundred seventy thousand, four hundred seventy-two".