8636940851 has 18 divisors (see below), whose sum is σ = 10963160892. Its totient is φ = 6728402520.

The previous prime is 8636940833. The next prime is 8636940857. The reversal of 8636940851 is 1580496368.

It is not a de Polignac number, because 8636940851 - 2³⁰ = 7563199027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8636940851.

It is not an unprimeable number, because it can be changed into a prime (8636940857) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 2155616 + ... + 2159618.

It is an arithmetic number, because the mean of its divisors is an integer number (609064494).

Almost surely, 2^8636940851 is an apocalyptic number.

8636940851 is a deficient number, since it is larger than the sum of its proper divisors (2326220041).

8636940851 is an frugal number, since it uses more digits than its factorization.

8636940851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8031 (or 4021 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 8636940851 is about 92935.1432505487. The cubic root of 8636940851 is about 2051.7289282012.

The spelling of 8636940851 in words is "eight billion, six hundred thirty-six million, nine hundred forty thousand, eight hundred fifty-one".