26685686630 has 8 divisors (see below), whose sum is σ = 48034235952. Its totient is φ = 10674274648.

The previous prime is 26685686627. The next prime is 26685686633. The reversal of 26685686630 is 3668658662.

It is an interprime number because it is at equal distance from previous prime (26685686627) and next prime (26685686633).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26685686633) 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, 1334284322 + ... + 1334284341.

It is an arithmetic number, because the mean of its divisors is an integer number (6004279494).

Almost surely, 2^26685686630 is an apocalyptic number.

26685686630 is a deficient number, since it is larger than the sum of its proper divisors (21348549322).

26685686630 is a wasteful number, since it uses less digits than its factorization.

26685686630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668568670.

The product of its (nonzero) digits is 14929920, while the sum is 56.

The spelling of 26685686630 in words is "twenty-six billion, six hundred eighty-five million, six hundred eighty-six thousand, six hundred thirty".