80072887877 has 2 divisors, whose sum is σ = 80072887878. Its totient is φ = 80072887876.

The previous prime is 80072887859. The next prime is 80072887901. The reversal of 80072887877 is 77878827008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80048819041 + 24068836 = 282929^2 + 4906^2 .

It is a cyclic number.

It is not a de Polignac number, because 80072887877 - 2⁶ = 80072887813 is a prime.

It is a super-2 number, since 2×80072887877² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80072887837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40036443938 + 40036443939.

It is an arithmetic number, because the mean of its divisors is an integer number (40036443939).

Almost surely, 2^80072887877 is an apocalyptic number.

It is an amenable number.

80072887877 is a deficient number, since it is larger than the sum of its proper divisors (1).

80072887877 is an equidigital number, since it uses as much as digits as its factorization.

80072887877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19668992, while the sum is 62.

The spelling of 80072887877 in words is "eighty billion, seventy-two million, eight hundred eighty-seven thousand, eight hundred seventy-seven".