31796741472 has 96 divisors (see below), whose sum is σ = 85483335168. Its totient is φ = 10343241216.

The previous prime is 31796741443. The next prime is 31796741479. The reversal of 31796741472 is 27414769713.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×31796741472² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31796741479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5871438 + ... + 5876850.

It is an arithmetic number, because the mean of its divisors is an integer number (890451408).

Almost surely, 2^31796741472 is an apocalyptic number.

31796741472 is a gapful number since it is divisible by the number (32) 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 31796741472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42741667584).

31796741472 is an abundant number, since it is smaller than the sum of its proper divisors (53686593696).

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

31796741472 is a wasteful number, since it uses less digits than its factorization.

31796741472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6892 (or 6884 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 51.

The spelling of 31796741472 in words is "thirty-one billion, seven hundred ninety-six million, seven hundred forty-one thousand, four hundred seventy-two".