79202908913 has 2 divisors, whose sum is σ = 79202908914. Its totient is φ = 79202908912.

The previous prime is 79202908879. The next prime is 79202908919. The reversal of 79202908913 is 31980920297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76185384289 + 3017524624 = 276017^2 + 54932^2 .

It is an emirp because it is prime and its reverse (31980920297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79202908913 - 2⁶ = 79202908849 is a prime.

It is not a weakly prime, because it can be changed into another prime (79202908919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39601454456 + 39601454457.

It is an arithmetic number, because the mean of its divisors is an integer number (39601454457).

Almost surely, 2^79202908913 is an apocalyptic number.

It is an amenable number.

79202908913 is a deficient number, since it is larger than the sum of its proper divisors (1).

79202908913 is an equidigital number, since it uses as much as digits as its factorization.

79202908913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 79202908913 in words is "seventy-nine billion, two hundred two million, nine hundred eight thousand, nine hundred thirteen".