83108784421 has 8 divisors (see below), whose sum is σ = 89509885920. Its totient is φ = 76708842672.

The previous prime is 83108784413. The next prime is 83108784457. The reversal of 83108784421 is 12448780138.

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 83108784421 - 2³ = 83108784413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83108584421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138151 + ... + 430468.

It is an arithmetic number, because the mean of its divisors is an integer number (11188735740).

Almost surely, 2^83108784421 is an apocalyptic number.

It is an amenable number.

83108784421 is a deficient number, since it is larger than the sum of its proper divisors (6401101499).

83108784421 is a wasteful number, since it uses less digits than its factorization.

83108784421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579875.

The product of its (nonzero) digits is 344064, while the sum is 46.

The spelling of 83108784421 in words is "eighty-three billion, one hundred eight million, seven hundred eighty-four thousand, four hundred twenty-one".