83913864207 has 4 divisors (see below), whose sum is σ = 111885152280. Its totient is φ = 55942576136.

The previous prime is 83913864191. The next prime is 83913864241. The reversal of 83913864207 is 70246831938.

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

It is a cyclic number.

It is not a de Polignac number, because 83913864207 - 2⁴ = 83913864191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83913864207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83913863207) 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, 13985644032 + ... + 13985644037.

It is an arithmetic number, because the mean of its divisors is an integer number (27971288070).

Almost surely, 2^83913864207 is an apocalyptic number.

83913864207 is a deficient number, since it is larger than the sum of its proper divisors (27971288073).

83913864207 is a wasteful number, since it uses less digits than its factorization.

83913864207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27971288072.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 83913864207 in words is "eighty-three billion, nine hundred thirteen million, eight hundred sixty-four thousand, two hundred seven".