8678631811 has 2 divisors, whose sum is σ = 8678631812. Its totient is φ = 8678631810.

The previous prime is 8678631803. The next prime is 8678631817. The reversal of 8678631811 is 1181368768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8678631811 - 2³ = 8678631803 is a prime.

It is a super-2 number, since 2×8678631811² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8678631817) 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 as a sum of consecutive naturals, namely, 4339315905 + 4339315906.

It is an arithmetic number, because the mean of its divisors is an integer number (4339315906).

Almost surely, 2^8678631811 is an apocalyptic number.

8678631811 is a deficient number, since it is larger than the sum of its proper divisors (1).

8678631811 is an equidigital number, since it uses as much as digits as its factorization.

8678631811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 49.

The square root of 8678631811 is about 93159.1745938101. The cubic root of 8678631811 is about 2055.0248978065.

The spelling of 8678631811 in words is "eight billion, six hundred seventy-eight million, six hundred thirty-one thousand, eight hundred eleven".