31707745348 has 24 divisors (see below), whose sum is σ = 56540215928. Its totient is φ = 15555649536.

The previous prime is 31707745343. The next prime is 31707745369. The reversal of 31707745348 is 84354770713.

It can be written as a sum of positive squares in 4 ways, for example, as 9907813444 + 21799931904 = 99538^2 + 147648^2 .

It is a super-2 number, since 2×31707745348² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31707745343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224961 + ... + 337672.

Almost surely, 2^31707745348 is an apocalyptic number.

It is an amenable number.

31707745348 is a deficient number, since it is larger than the sum of its proper divisors (24832470580).

31707745348 is a wasteful number, since it uses less digits than its factorization.

31707745348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562903 (or 562901 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 31707745348 in words is "thirty-one billion, seven hundred seven million, seven hundred forty-five thousand, three hundred forty-eight".