80846661579 has 4 divisors (see below), whose sum is σ = 107795548776. Its totient is φ = 53897774384.

The previous prime is 80846661551. The next prime is 80846661583. The reversal of 80846661579 is 97516664808.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80846661579 - 2²³ = 80838272971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80846611579) 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, 13474443594 + ... + 13474443599.

It is an arithmetic number, because the mean of its divisors is an integer number (26948887194).

Almost surely, 2^80846661579 is an apocalyptic number.

80846661579 is a deficient number, since it is larger than the sum of its proper divisors (26948887197).

80846661579 is a wasteful number, since it uses less digits than its factorization.

80846661579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26948887196.

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 80846661579 in words is "eighty billion, eight hundred forty-six million, six hundred sixty-one thousand, five hundred seventy-nine".