86899419839 has 4 divisors (see below), whose sum is σ = 86901576240. Its totient is φ = 86897263440.

The previous prime is 86899419829. The next prime is 86899419913. The reversal of 86899419839 is 93891499868.

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-86899419839 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 (86899419829) 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, 1016579 + ... + 1098740.

It is an arithmetic number, because the mean of its divisors is an integer number (21725394060).

Almost surely, 2^86899419839 is an apocalyptic number.

86899419839 is a deficient number, since it is larger than the sum of its proper divisors (2156401).

86899419839 is a wasteful number, since it uses less digits than its factorization.

86899419839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156400.

The product of its digits is 241864704, while the sum is 74.

The spelling of 86899419839 in words is "eighty-six billion, eight hundred ninety-nine million, four hundred nineteen thousand, eight hundred thirty-nine".