9638680144 has 20 divisors (see below), whose sum is σ = 18747615924. Its totient is φ = 4800585728.

The previous prime is 9638680133. The next prime is 9638680217. The reversal of 9638680144 is 4410868369.

It can be written as a sum of positive squares in 2 ways, for example, as 6462230544 + 3176449600 = 80388^2 + 56360^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1167907 + ... + 1176130.

Almost surely, 2^9638680144 is an apocalyptic number.

It is an amenable number.

9638680144 is a deficient number, since it is larger than the sum of its proper divisors (9108935780).

9638680144 is a wasteful number, since it uses less digits than its factorization.

9638680144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344302 (or 2344296 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 9638680144 is about 98176.7800653495. The cubic root of 9638680144 is about 2128.1677428684.

The spelling of 9638680144 in words is "nine billion, six hundred thirty-eight million, six hundred eighty thousand, one hundred forty-four".