86438487685 has 8 divisors (see below), whose sum is σ = 113155838496. Its totient is φ = 62864354640.

The previous prime is 86438487671. The next prime is 86438487701. The reversal of 86438487685 is 58678483468.

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

It is a de Polignac number, because none of the positive numbers 2^k-86438487685 is a prime.

It is a super-2 number, since 2×86438487685² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86438487685.

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, 785804379 + ... + 785804488.

It is an arithmetic number, because the mean of its divisors is an integer number (14144479812).

Almost surely, 2^86438487685 is an apocalyptic number.

It is an amenable number.

86438487685 is a deficient number, since it is larger than the sum of its proper divisors (26717350811).

86438487685 is a wasteful number, since it uses less digits than its factorization.

86438487685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571608883.

The product of its digits is 247726080, while the sum is 67.

The spelling of 86438487685 in words is "eighty-six billion, four hundred thirty-eight million, four hundred eighty-seven thousand, six hundred eighty-five".