80891505353223 has 32 divisors (see below), whose sum is σ = 121365526400000. Its totient is φ = 53240958291456.

The previous prime is 80891505353149. The next prime is 80891505353233. The reversal of 80891505353223 is 32235350519808.

It is a happy number.

80891505353223 is a `hidden beast` number, since 8 + 0 + 8 + 9 + 1 + 50 + 53 + 532 + 2 + 3 = 666.

It is not a de Polignac number, because 80891505353223 - 2¹⁴ = 80891505336839 is a prime.

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 80891505353223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80891505353233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26492583 + ... + 29387751.

It is an arithmetic number, because the mean of its divisors is an integer number (3792672700000).

Almost surely, 2^{80891505353223} is an apocalyptic number.

80891505353223 is a deficient number, since it is larger than the sum of its proper divisors (40474021046777).

80891505353223 is a wasteful number, since it uses less digits than its factorization.

80891505353223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908356 (or 2908350 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 80891505353223 in words is "eighty trillion, eight hundred ninety-one billion, five hundred five million, three hundred fifty-three thousand, two hundred twenty-three".