9854978632 has 16 divisors (see below), whose sum is σ = 18647610300. Its totient is φ = 4882282560.

The previous prime is 9854978599. The next prime is 9854978657. The reversal of 9854978632 is 2368794589.

It can be written as a sum of positive squares in 2 ways, for example, as 9065705796 + 789272836 = 95214^2 + 28094^2 .

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, 5649919 + ... + 5651662.

Almost surely, 2^9854978632 is an apocalyptic number.

It is an amenable number.

9854978632 is a deficient number, since it is larger than the sum of its proper divisors (8792631668).

9854978632 is a wasteful number, since it uses less digits than its factorization.

9854978632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11301696 (or 11301692 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 61.

The square root of 9854978632 is about 99272.2450234707. The cubic root of 9854978632 is about 2143.9693000960.

The spelling of 9854978632 in words is "nine billion, eight hundred fifty-four million, nine hundred seventy-eight thousand, six hundred thirty-two".