8117907651 has 12 divisors (see below), whose sum is σ = 13400990512. Its totient is φ = 4638804336.

The previous prime is 8117907613. The next prime is 8117907671. The reversal of 8117907651 is 1567097118.

It is not a de Polignac number, because 8117907651 - 2⁹ = 8117907139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8117907597 and 8117907606.

It is not an unprimeable number, because it can be changed into a prime (8117907671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64427776 + ... + 64427901.

Almost surely, 2^8117907651 is an apocalyptic number.

8117907651 is a deficient number, since it is larger than the sum of its proper divisors (5283082861).

8117907651 is a wasteful number, since it uses less digits than its factorization.

8117907651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128855690 (or 128855687 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 45.

The square root of 8117907651 is about 90099.4320237370. The cubic root of 8117907651 is about 2009.7777574135. Note that the first 4 decimals are identical.

The spelling of 8117907651 in words is "eight billion, one hundred seventeen million, nine hundred seven thousand, six hundred fifty-one".