8139916995827 has 2 divisors, whose sum is σ = 8139916995828. Its totient is φ = 8139916995826.

The previous prime is 8139916995799. The next prime is 8139916995841. The reversal of 8139916995827 is 7285996199318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8139916995827 - 2¹⁴ = 8139916979443 is a prime.

It is not a weakly prime, because it can be changed into another prime (8139916995857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4069958497913 + 4069958497914.

It is an arithmetic number, because the mean of its divisors is an integer number (4069958497914).

Almost surely, 2^{8139916995827} is an apocalyptic number.

8139916995827 is a deficient number, since it is larger than the sum of its proper divisors (1).

8139916995827 is an equidigital number, since it uses as much as digits as its factorization.

8139916995827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529079040, while the sum is 77.

The spelling of 8139916995827 in words is "eight trillion, one hundred thirty-nine billion, nine hundred sixteen million, nine hundred ninety-five thousand, eight hundred twenty-seven".