83892371883839 has 4 divisors (see below), whose sum is σ = 83921797481880. Its totient is φ = 83862946285800.

The previous prime is 83892371883781. The next prime is 83892371883851. The reversal of 83892371883839 is 93838817329838.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83892371883839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83892371813839) 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, 14712794744 + ... + 14712800445.

It is an arithmetic number, because the mean of its divisors is an integer number (20980449370470).

Almost surely, 2^{83892371883839} is an apocalyptic number.

83892371883839 is a deficient number, since it is larger than the sum of its proper divisors (29425598041).

83892371883839 is a wasteful number, since it uses less digits than its factorization.

83892371883839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29425598040.

The product of its digits is 3009871872, while the sum is 80.

The spelling of 83892371883839 in words is "eighty-three trillion, eight hundred ninety-two billion, three hundred seventy-one million, eight hundred eighty-three thousand, eight hundred thirty-nine".