79436503841 has 2 divisors, whose sum is σ = 79436503842. Its totient is φ = 79436503840.

The previous prime is 79436503807. The next prime is 79436503849. The reversal of 79436503841 is 14830563497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41403703441 + 38032800400 = 203479^2 + 195020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79436503841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79436503841.

It is not a weakly prime, because it can be changed into another prime (79436503849) 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, 39718251920 + 39718251921.

It is an arithmetic number, because the mean of its divisors is an integer number (39718251921).

Almost surely, 2^79436503841 is an apocalyptic number.

It is an amenable number.

79436503841 is a deficient number, since it is larger than the sum of its proper divisors (1).

79436503841 is an equidigital number, since it uses as much as digits as its factorization.

79436503841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 79436503841 in words is "seventy-nine billion, four hundred thirty-six million, five hundred three thousand, eight hundred forty-one".