31046632740 has 72 divisors (see below), whose sum is σ = 94238846520. Its totient is φ = 8273470464.

The previous prime is 31046632739. The next prime is 31046632751. The reversal of 31046632740 is 4723664013.

It is a happy number.

31046632740 is a `hidden beast` number, since 3 + 10 + 4 + 6 + 632 + 7 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 368409636 + 30678223104 = 19194^2 + 175152^2 .

It is a super-3 number, since 3×31046632740³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 31046632695 and 31046632704.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210102 + ... + 325938.

Almost surely, 2^31046632740 is an apocalyptic number.

31046632740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31046632740 is an abundant number, since it is smaller than the sum of its proper divisors (63192213780).

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

31046632740 is a wasteful number, since it uses less digits than its factorization.

31046632740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117341 (or 117336 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

It can be divided in two parts, 310466 and 32740, that added together give a triangular number (343206 = T₈₂₈).

The spelling of 31046632740 in words is "thirty-one billion, forty-six million, six hundred thirty-two thousand, seven hundred forty".