79669368811 has 2 divisors, whose sum is σ = 79669368812. Its totient is φ = 79669368810.

The previous prime is 79669368799. The next prime is 79669368833. The reversal of 79669368811 is 11886396697.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79669368811 is a prime.

It is not a weakly prime, because it can be changed into another prime (79669369811) 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 as a sum of consecutive naturals, namely, 39834684405 + 39834684406.

It is an arithmetic number, because the mean of its divisors is an integer number (39834684406).

Almost surely, 2^79669368811 is an apocalyptic number.

79669368811 is a deficient number, since it is larger than the sum of its proper divisors (1).

79669368811 is an equidigital number, since it uses as much as digits as its factorization.

79669368811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 64.

The spelling of 79669368811 in words is "seventy-nine billion, six hundred sixty-nine million, three hundred sixty-eight thousand, eight hundred eleven".