80709250189 has 4 divisors (see below), whose sum is σ = 81344756224. Its totient is φ = 80073744156.

The previous prime is 80709250147. The next prime is 80709250261. The reversal of 80709250189 is 98105290708.

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 a de Polignac number, because none of the positive numbers 2^k-80709250189 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 (80709260189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317752827 + ... + 317753080.

It is an arithmetic number, because the mean of its divisors is an integer number (20336189056).

Almost surely, 2^80709250189 is an apocalyptic number.

It is an amenable number.

80709250189 is a deficient number, since it is larger than the sum of its proper divisors (635506035).

80709250189 is a wasteful number, since it uses less digits than its factorization.

80709250189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635506034.

The product of its (nonzero) digits is 362880, while the sum is 49.

The spelling of 80709250189 in words is "eighty billion, seven hundred nine million, two hundred fifty thousand, one hundred eighty-nine".