8630638372 has 6 divisors (see below), whose sum is σ = 15103617158. Its totient is φ = 4315319184.

The previous prime is 8630638369. The next prime is 8630638391. The reversal of 8630638372 is 2738360368.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7268585536 + 1362052836 = 85256^2 + 36906^2 .

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 as a sum of consecutive naturals, namely, 1078829793 + ... + 1078829800.

Almost surely, 2^8630638372 is an apocalyptic number.

It is an amenable number.

8630638372 is a deficient number, since it is larger than the sum of its proper divisors (6472978786).

8630638372 is a wasteful number, since it uses less digits than its factorization.

8630638372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157659597 (or 2157659595 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 8630638372 is about 92901.2291199637. The cubic root of 8630638372 is about 2051.2297497197.

The spelling of 8630638372 in words is "eight billion, six hundred thirty million, six hundred thirty-eight thousand, three hundred seventy-two".