9978517332 has 60 divisors (see below), whose sum is σ = 29812367200. Its totient is φ = 2851004304.

The previous prime is 9978517321. The next prime is 9978517391. The reversal of 9978517332 is 2337158799.

9978517332 is a `hidden beast` number, since 9 + 97 + 8 + 517 + 3 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2197582 + ... + 2202117.

Almost surely, 2^9978517332 is an apocalyptic number.

It is an amenable number.

9978517332 is an abundant number, since it is smaller than the sum of its proper divisors (19833849868).

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

9978517332 is a wasteful number, since it uses less digits than its factorization.

9978517332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4399722 (or 4399711 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 9978517332 is about 99892.5289098239. The cubic root of 9978517332 is about 2152.8908171141.

The spelling of 9978517332 in words is "nine billion, nine hundred seventy-eight million, five hundred seventeen thousand, three hundred thirty-two".