80542417797 has 12 divisors (see below), whose sum is σ = 120647901920. Its totient is φ = 53694945036.

The previous prime is 80542417757. The next prime is 80542417801. The reversal of 80542417797 is 79771424508.

80542417797 is a `hidden beast` number, since 8 + 0 + 542 + 4 + 1 + 7 + 7 + 97 = 666.

It is not a de Polignac number, because 80542417797 - 2²⁴ = 80525640581 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 (80542417757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165724897 + ... + 165725382.

Almost surely, 2^80542417797 is an apocalyptic number.

It is an amenable number.

80542417797 is a deficient number, since it is larger than the sum of its proper divisors (40105484123).

80542417797 is an equidigital number, since it uses as much as digits as its factorization.

80542417797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331450294 (or 331450282 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 80542417797 in words is "eighty billion, five hundred forty-two million, four hundred seventeen thousand, seven hundred ninety-seven".