83179235491 has 8 divisors (see below), whose sum is σ = 91130433264. Its totient is φ = 75292945920.

The previous prime is 83179235437. The next prime is 83179235497. The reversal of 83179235491 is 19453297138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83179235491 - 2²¹ = 83177138339 is a prime.

It is a super-2 number, since 2×83179235491² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83179235497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16224366 + ... + 16229491.

It is an arithmetic number, because the mean of its divisors is an integer number (11391304158).

Almost surely, 2^83179235491 is an apocalyptic number.

83179235491 is a deficient number, since it is larger than the sum of its proper divisors (7951197773).

83179235491 is a wasteful number, since it uses less digits than its factorization.

83179235491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32454101.

The product of its digits is 1632960, while the sum is 52.

The spelling of 83179235491 in words is "eighty-three billion, one hundred seventy-nine million, two hundred thirty-five thousand, four hundred ninety-one".