86261287685 has 8 divisors (see below), whose sum is σ = 103592752416. Its totient is φ = 68956225360.

The previous prime is 86261287667. The next prime is 86261287691. The reversal of 86261287685 is 58678216268.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86261287685 - 2⁸ = 86261287429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6593411 + ... + 6606480.

It is an arithmetic number, because the mean of its divisors is an integer number (12949094052).

Almost surely, 2^86261287685 is an apocalyptic number.

It is an amenable number.

86261287685 is a deficient number, since it is larger than the sum of its proper divisors (17331464731).

86261287685 is a wasteful number, since it uses less digits than its factorization.

86261287685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13201203.

The product of its digits is 15482880, while the sum is 59.

The spelling of 86261287685 in words is "eighty-six billion, two hundred sixty-one million, two hundred eighty-seven thousand, six hundred eighty-five".