80940217492 has 24 divisors (see below), whose sum is σ = 143112152232. Its totient is φ = 40051392000.

The previous prime is 80940217483. The next prime is 80940217541. The reversal of 80940217492 is 29471204908.

It can be written as a sum of positive squares in 4 ways, for example, as 43917070096 + 37023147396 = 209564^2 + 192414^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 877608 + ... + 965440.

It is an arithmetic number, because the mean of its divisors is an integer number (5963006343).

Almost surely, 2^80940217492 is an apocalyptic number.

It is an amenable number.

80940217492 is a deficient number, since it is larger than the sum of its proper divisors (62171934740).

80940217492 is a wasteful number, since it uses less digits than its factorization.

80940217492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90219 (or 90217 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 80940217492 in words is "eighty billion, nine hundred forty million, two hundred seventeen thousand, four hundred ninety-two".