80554402491 has 8 divisors (see below), whose sum is σ = 107407185744. Its totient is φ = 53702277120.

The previous prime is 80554402477. The next prime is 80554402501. The reversal of 80554402491 is 19420445508.

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

It is not a de Polignac number, because 80554402491 - 2⁵ = 80554402459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80554401491) 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, 361851 + ... + 540411.

It is an arithmetic number, because the mean of its divisors is an integer number (13425898218).

Almost surely, 2^80554402491 is an apocalyptic number.

80554402491 is a deficient number, since it is larger than the sum of its proper divisors (26852783253).

80554402491 is a wasteful number, since it uses less digits than its factorization.

80554402491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328941.

The product of its (nonzero) digits is 230400, while the sum is 42.

Adding to 80554402491 its reverse (19420445508), we get a palindrome (99974847999).

The spelling of 80554402491 in words is "eighty billion, five hundred fifty-four million, four hundred two thousand, four hundred ninety-one".