83680261580189 has 4 divisors (see below), whose sum is σ = 83680444926624. Its totient is φ = 83680078233756.

The previous prime is 83680261580077. The next prime is 83680261580219. The reversal of 83680261580189 is 98108516208638.

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 83680261580189 - 2³² = 83675966612893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83680261580389) 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, 90986897 + ... + 91901990.

It is an arithmetic number, because the mean of its divisors is an integer number (20920111231656).

Almost surely, 2^{83680261580189} is an apocalyptic number.

It is an amenable number.

83680261580189 is a deficient number, since it is larger than the sum of its proper divisors (183346435).

83680261580189 is a wasteful number, since it uses less digits than its factorization.

83680261580189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183346434.

The product of its (nonzero) digits is 39813120, while the sum is 65.

The spelling of 83680261580189 in words is "eighty-three trillion, six hundred eighty billion, two hundred sixty-one million, five hundred eighty thousand, one hundred eighty-nine".