31094940672 has 66 divisors (see below), whose sum is σ = 89785992998. Its totient is φ = 10364977152.

The previous prime is 31094940661. The next prime is 31094940683. The reversal of 31094940672 is 27604949013.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31094940661) and next prime (31094940683).

It can be written as a sum of positive squares in only one way, i.e., 23563478016 + 7531462656 = 153504^2 + 86784^2 .

It is a super-3 number, since 3×31094940672³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1677793 + ... + 1696224.

Almost surely, 2^31094940672 is an apocalyptic number.

31094940672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31094940672 is an abundant number, since it is smaller than the sum of its proper divisors (58691052326).

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

31094940672 is a wasteful number, since it uses less digits than its factorization.

31094940672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374043 (or 3374022 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 31094940672 in words is "thirty-one billion, ninety-four million, nine hundred forty thousand, six hundred seventy-two".