80081057717 has 4 divisors (see below), whose sum is σ = 81438363840. Its totient is φ = 78723751596.

The previous prime is 80081057681. The next prime is 80081057741. The reversal of 80081057717 is 71775018008.

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 80081057717 - 2¹⁴ = 80081041333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80081057317) 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, 678652973 + ... + 678653090.

It is an arithmetic number, because the mean of its divisors is an integer number (20359590960).

Almost surely, 2^80081057717 is an apocalyptic number.

It is an amenable number.

80081057717 is a deficient number, since it is larger than the sum of its proper divisors (1357306123).

80081057717 is a wasteful number, since it uses less digits than its factorization.

80081057717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357306122.

The product of its (nonzero) digits is 109760, while the sum is 44.

The spelling of 80081057717 in words is "eighty billion, eighty-one million, fifty-seven thousand, seven hundred seventeen".