80672952191 has 4 divisors (see below), whose sum is σ = 86878563912. Its totient is φ = 74467340472.

The previous prime is 80672952179. The next prime is 80672952197. The reversal of 80672952191 is 19125927608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80672952191 - 2⁶ = 80672952127 is a prime.

It is a super-2 number, since 2×80672952191² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80672952197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3102805841 + ... + 3102805866.

It is an arithmetic number, because the mean of its divisors is an integer number (21719640978).

Almost surely, 2^80672952191 is an apocalyptic number.

80672952191 is a deficient number, since it is larger than the sum of its proper divisors (6205611721).

80672952191 is a wasteful number, since it uses less digits than its factorization.

80672952191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6205611720.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 80672952191 in words is "eighty billion, six hundred seventy-two million, nine hundred fifty-two thousand, one hundred ninety-one".