8947642902 has 48 divisors (see below), whose sum is σ = 20304592896. Its totient is φ = 2623935600.

The previous prime is 8947642859. The next prime is 8947642927. The reversal of 8947642902 is 2092467498.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176278 + ... + 221289.

It is an arithmetic number, because the mean of its divisors is an integer number (423012352).

Almost surely, 2^8947642902 is an apocalyptic number.

8947642902 is an abundant number, since it is smaller than the sum of its proper divisors (11356949994).

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

8947642902 is a wasteful number, since it uses less digits than its factorization.

8947642902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397625 (or 397614 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 8947642902 is about 94591.9811717674. The cubic root of 8947642902 is about 2076.0423776715.

The spelling of 8947642902 in words is "eight billion, nine hundred forty-seven million, six hundred forty-two thousand, nine hundred two".