86779835989 has 12 divisors (see below), whose sum is σ = 110125061568. Its totient is φ = 67620651000.

The previous prime is 86779835971. The next prime is 86779836007. The reversal of 86779835989 is 98953897768.

It is an interprime number because it is at equal distance from previous prime (86779835971) and next prime (86779836007).

It is not a de Polignac number, because 86779835989 - 2³³ = 78189901397 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 (86779845989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80500237 + ... + 80501314.

It is an arithmetic number, because the mean of its divisors is an integer number (9177088464).

Almost surely, 2^86779835989 is an apocalyptic number.

It is an amenable number.

86779835989 is a deficient number, since it is larger than the sum of its proper divisors (23345225579).

86779835989 is a wasteful number, since it uses less digits than its factorization.

86779835989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161001576 (or 161001569 counting only the distinct ones).

The product of its digits is 1646023680, while the sum is 79.

The spelling of 86779835989 in words is "eighty-six billion, seven hundred seventy-nine million, eight hundred thirty-five thousand, nine hundred eighty-nine".