83864941265 has 16 divisors (see below), whose sum is σ = 116470663680. Its totient is φ = 56779444800.

The previous prime is 83864941261. The next prime is 83864941327. The reversal of 83864941265 is 56214946838.

It is not a de Polignac number, because 83864941265 - 2² = 83864941261 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83864941265.

It is not an unprimeable number, because it can be changed into a prime (83864941261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15162686 + ... + 15168215.

It is an arithmetic number, because the mean of its divisors is an integer number (7279416480).

Almost surely, 2^83864941265 is an apocalyptic number.

It is an amenable number.

83864941265 is a deficient number, since it is larger than the sum of its proper divisors (32605722415).

83864941265 is a wasteful number, since it uses less digits than its factorization.

83864941265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30330992.

The product of its digits is 9953280, while the sum is 56.

The spelling of 83864941265 in words is "eighty-three billion, eight hundred sixty-four million, nine hundred forty-one thousand, two hundred sixty-five".