80769231577 has 4 divisors (see below), whose sum is σ = 80771248080. Its totient is φ = 80767215076.

The previous prime is 80769231563. The next prime is 80769231617. The reversal of 80769231577 is 77513296708.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80769231577 - 2³⁵ = 46409493209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80769231547) 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 in 3 ways as a sum of consecutive naturals, for example, 946927 + ... + 1028692.

It is an arithmetic number, because the mean of its divisors is an integer number (20192812020).

Almost surely, 2^80769231577 is an apocalyptic number.

It is an amenable number.

80769231577 is a deficient number, since it is larger than the sum of its proper divisors (2016503).

80769231577 is a wasteful number, since it uses less digits than its factorization.

80769231577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016502.

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 80769231577 in words is "eighty billion, seven hundred sixty-nine million, two hundred thirty-one thousand, five hundred seventy-seven".