80921274585 has 8 divisors (see below), whose sum is σ = 129474039360. Its totient is φ = 43158013104.

The previous prime is 80921274559. The next prime is 80921274589. The reversal of 80921274585 is 58547212908.

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

It is not a de Polignac number, because 80921274585 - 2⁶ = 80921274521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80921274589) 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, 2697375805 + ... + 2697375834.

It is an arithmetic number, because the mean of its divisors is an integer number (16184254920).

Almost surely, 2^80921274585 is an apocalyptic number.

It is an amenable number.

80921274585 is a deficient number, since it is larger than the sum of its proper divisors (48552764775).

80921274585 is a wasteful number, since it uses less digits than its factorization.

80921274585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5394751647.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 80921274585 in words is "eighty billion, nine hundred twenty-one million, two hundred seventy-four thousand, five hundred eighty-five".