80281077761 has 4 divisors (see below), whose sum is σ = 80287186224. Its totient is φ = 80274969300.

The previous prime is 80281077757. The next prime is 80281077781. The reversal of 80281077761 is 16777018208.

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 80281077761 - 2² = 80281077757 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80281077781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3034475 + ... + 3060816.

It is an arithmetic number, because the mean of its divisors is an integer number (20071796556).

Almost surely, 2^80281077761 is an apocalyptic number.

It is an amenable number.

80281077761 is a deficient number, since it is larger than the sum of its proper divisors (6108463).

80281077761 is a wasteful number, since it uses less digits than its factorization.

80281077761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6108462.

The product of its (nonzero) digits is 263424, while the sum is 47.

The spelling of 80281077761 in words is "eighty billion, two hundred eighty-one million, seventy-seven thousand, seven hundred sixty-one".