83442874727 has 4 divisors (see below), whose sum is σ = 83446361616. Its totient is φ = 83439387840.

The previous prime is 83442874717. The next prime is 83442874733. The reversal of 83442874727 is 72747824438.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83442874727 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 (83442874717) 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, 1707299 + ... + 1755492.

It is an arithmetic number, because the mean of its divisors is an integer number (20861590404).

Almost surely, 2^83442874727 is an apocalyptic number.

83442874727 is a deficient number, since it is larger than the sum of its proper divisors (3486889).

83442874727 is a wasteful number, since it uses less digits than its factorization.

83442874727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486888.

The product of its digits is 16859136, while the sum is 56.

The spelling of 83442874727 in words is "eighty-three billion, four hundred forty-two million, eight hundred seventy-four thousand, seven hundred twenty-seven".