80777535133 has 2 divisors, whose sum is σ = 80777535134. Its totient is φ = 80777535132.

The previous prime is 80777535049. The next prime is 80777535143. The reversal of 80777535133 is 33153577708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80186947929 + 590587204 = 283173^2 + 24302^2 .

It is a cyclic number.

It is not a de Polignac number, because 80777535133 - 2²⁵ = 80743980701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80777535143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40388767566 + 40388767567.

It is an arithmetic number, because the mean of its divisors is an integer number (40388767567).

Almost surely, 2^80777535133 is an apocalyptic number.

It is an amenable number.

80777535133 is a deficient number, since it is larger than the sum of its proper divisors (1).

80777535133 is an equidigital number, since it uses as much as digits as its factorization.

80777535133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1852200, while the sum is 49.

The spelling of 80777535133 in words is "eighty billion, seven hundred seventy-seven million, five hundred thirty-five thousand, one hundred thirty-three".