86989834499 has 4 divisors (see below), whose sum is σ = 86992123800. Its totient is φ = 86987545200.

The previous prime is 86989834493. The next prime is 86989834507. The reversal of 86989834499 is 99443898968.

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-86989834499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86989834493) 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, 1086674 + ... + 1163975.

It is an arithmetic number, because the mean of its divisors is an integer number (21748030950).

Almost surely, 2^86989834499 is an apocalyptic number.

86989834499 is a deficient number, since it is larger than the sum of its proper divisors (2289301).

86989834499 is a wasteful number, since it uses less digits than its factorization.

86989834499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289300.

The product of its digits is 967458816, while the sum is 77.

The spelling of 86989834499 in words is "eighty-six billion, nine hundred eighty-nine million, eight hundred thirty-four thousand, four hundred ninety-nine".