80942019591 has 8 divisors (see below), whose sum is σ = 107970903040. Its totient is φ = 53937241272.

The previous prime is 80942019581. The next prime is 80942019593. The reversal of 80942019591 is 19591024908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80942019591 - 2⁷ = 80942019463 is a prime.

It is a super-2 number, since 2×80942019591² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80942019591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80942019593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6018445 + ... + 6031878.

It is an arithmetic number, because the mean of its divisors is an integer number (13496362880).

Almost surely, 2^80942019591 is an apocalyptic number.

80942019591 is a deficient number, since it is larger than the sum of its proper divisors (27028883449).

80942019591 is a wasteful number, since it uses less digits than its factorization.

80942019591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12052565.

The product of its (nonzero) digits is 233280, while the sum is 48.

The spelling of 80942019591 in words is "eighty billion, nine hundred forty-two million, nineteen thousand, five hundred ninety-one".