83504859621 has 8 divisors (see below), whose sum is σ = 111341160000. Its totient is φ = 55669232832.

The previous prime is 83504859611. The next prime is 83504859671. The reversal of 83504859621 is 12695840538.

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

It is not a de Polignac number, because 83504859621 - 2¹⁰ = 83504858597 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83504859611) 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, 341005 + ... + 532253.

It is an arithmetic number, because the mean of its divisors is an integer number (13917645000).

Almost surely, 2^83504859621 is an apocalyptic number.

It is an amenable number.

83504859621 is a deficient number, since it is larger than the sum of its proper divisors (27836300379).

83504859621 is a wasteful number, since it uses less digits than its factorization.

83504859621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336795.

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 83504859621 in words is "eighty-three billion, five hundred four million, eight hundred fifty-nine thousand, six hundred twenty-one".