80962889205 has 32 divisors (see below), whose sum is σ = 148754787840. Its totient is φ = 37188694080.

The previous prime is 80962889197. The next prime is 80962889269. The reversal of 80962889205 is 50298826908.

It is not a de Polignac number, because 80962889205 - 2³ = 80962889197 is a prime.

It is a super-2 number, since 2×80962889205² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12909607 + ... + 12915876.

It is an arithmetic number, because the mean of its divisors is an integer number (4648587120).

Almost surely, 2^80962889205 is an apocalyptic number.

It is an amenable number.

80962889205 is a deficient number, since it is larger than the sum of its proper divisors (67791898635).

80962889205 is a wasteful number, since it uses less digits than its factorization.

80962889205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25825521.

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 80962889205 in words is "eighty billion, nine hundred sixty-two million, eight hundred eighty-nine thousand, two hundred five".