31574091480 has 128 divisors (see below), whose sum is σ = 97862584320. Its totient is φ = 8141091840.

The previous prime is 31574091463. The next prime is 31574091509. The reversal of 31574091480 is 8419047513.

It is a happy number.

It is a Cunningham number, because it is equal to 177691²-1.

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, 5327799 + ... + 5333721.

It is an arithmetic number, because the mean of its divisors is an integer number (764551440).

Almost surely, 2^31574091480 is an apocalyptic number.

31574091480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31574091480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48931292160).

31574091480 is an abundant number, since it is smaller than the sum of its proper divisors (66288492840).

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

31574091480 is a wasteful number, since it uses less digits than its factorization.

31574091480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401 (or 7397 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 31574091480 in words is "thirty-one billion, five hundred seventy-four million, ninety-one thousand, four hundred eighty".