83126732171309 has 4 divisors (see below), whose sum is σ = 87501823338240. Its totient is φ = 78751641004380.

The previous prime is 83126732171279. The next prime is 83126732171411. The reversal of 83126732171309 is 90317123762138.

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 83126732171309 - 2³² = 83122437204013 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 (83126732171009) 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, 2187545583437 + ... + 2187545583474.

It is an arithmetic number, because the mean of its divisors is an integer number (21875455834560).

Almost surely, 2^{83126732171309} is an apocalyptic number.

It is an amenable number.

83126732171309 is a deficient number, since it is larger than the sum of its proper divisors (4375091166931).

83126732171309 is a wasteful number, since it uses less digits than its factorization.

83126732171309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375091166930.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 83126732171309 in words is "eighty-three trillion, one hundred twenty-six billion, seven hundred thirty-two million, one hundred seventy-one thousand, three hundred nine".