80872229693 has 4 divisors (see below), whose sum is σ = 83481011328. Its totient is φ = 78263448060.

The previous prime is 80872229653. The next prime is 80872229701. The reversal of 80872229693 is 39692227808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80872229693 - 2⁶ = 80872229629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80872229623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304390771 + ... + 1304390832.

It is an arithmetic number, because the mean of its divisors is an integer number (20870252832).

Almost surely, 2^80872229693 is an apocalyptic number.

It is an amenable number.

80872229693 is a deficient number, since it is larger than the sum of its proper divisors (2608781635).

80872229693 is a wasteful number, since it uses less digits than its factorization.

80872229693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608781634.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 80872229693 in words is "eighty billion, eight hundred seventy-two million, two hundred twenty-nine thousand, six hundred ninety-three".