9917460640 has 36 divisors (see below), whose sum is σ = 23432977134. Its totient is φ = 3966480384.

The previous prime is 9917460601. The next prime is 9917460653. The reversal of 9917460640 is 460647199.

It can be written as a sum of positive squares in 3 ways, for example, as 2257010064 + 7660450576 = 47508^2 + 87524^2 .

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, 1255744 + ... + 1263616.

Almost surely, 2^9917460640 is an apocalyptic number.

It is an amenable number.

9917460640 is an abundant number, since it is smaller than the sum of its proper divisors (13515516494).

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

9917460640 is an frugal number, since it uses more digits than its factorization.

9917460640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15761 (or 7880 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 9917460640 is about 99586.4480740226. The cubic root of 9917460640 is about 2148.4907843567.

The spelling of 9917460640 in words is "nine billion, nine hundred seventeen million, four hundred sixty thousand, six hundred forty".