80945019231 has 8 divisors (see below), whose sum is σ = 108522973104. Its totient is φ = 53665205760.

The previous prime is 80945019217. The next prime is 80945019241. The reversal of 80945019231 is 13291054908.

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

It is not a de Polignac number, because 80945019231 - 2⁹ = 80945018719 is a prime.

It is a super-2 number, since 2×80945019231² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80945019241) 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, 74534466 + ... + 74535551.

It is an arithmetic number, because the mean of its divisors is an integer number (13565371638).

Almost surely, 2^80945019231 is an apocalyptic number.

80945019231 is a deficient number, since it is larger than the sum of its proper divisors (27577953873).

80945019231 is a wasteful number, since it uses less digits than its factorization.

80945019231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149070201.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 80945019231 in words is "eighty billion, nine hundred forty-five million, nineteen thousand, two hundred thirty-one".