79896763129 has 2 divisors, whose sum is σ = 79896763130. Its totient is φ = 79896763128.

The previous prime is 79896763091. The next prime is 79896763139. The reversal of 79896763129 is 92136769897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75541423104 + 4355340025 = 274848^2 + 65995^2 .

It is a cyclic number.

It is not a de Polignac number, because 79896763129 - 2¹¹ = 79896761081 is a prime.

It is not a weakly prime, because it can be changed into another prime (79896763139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39948381564 + 39948381565.

It is an arithmetic number, because the mean of its divisors is an integer number (39948381565).

Almost surely, 2^79896763129 is an apocalyptic number.

It is an amenable number.

79896763129 is a deficient number, since it is larger than the sum of its proper divisors (1).

79896763129 is an equidigital number, since it uses as much as digits as its factorization.

79896763129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61725888, while the sum is 67.

The spelling of 79896763129 in words is "seventy-nine billion, eight hundred ninety-six million, seven hundred sixty-three thousand, one hundred twenty-nine".