79040202877 has 2 divisors, whose sum is σ = 79040202878. Its totient is φ = 79040202876.

The previous prime is 79040202859. The next prime is 79040202893. The reversal of 79040202877 is 77820204097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42927281721 + 36112921156 = 207189^2 + 190034^2 .

It is a cyclic number.

It is not a de Polignac number, because 79040202877 - 2¹⁹ = 79039678589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79040202847) 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, 39520101438 + 39520101439.

It is an arithmetic number, because the mean of its divisors is an integer number (39520101439).

Almost surely, 2^79040202877 is an apocalyptic number.

It is an amenable number.

79040202877 is a deficient number, since it is larger than the sum of its proper divisors (1).

79040202877 is an equidigital number, since it uses as much as digits as its factorization.

79040202877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 79040202877 in words is "seventy-nine billion, forty million, two hundred two thousand, eight hundred seventy-seven".