26860632231 has 4 divisors (see below), whose sum is σ = 35814176312. Its totient is φ = 17907088152.

The previous prime is 26860632209. The next prime is 26860632241. The reversal of 26860632231 is 13223606862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 26860632231 - 2⁶ = 26860632167 is a prime.

It is a super-2 number, since 2×26860632231² (a number of 22 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 26860632231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26860632241) 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, 4476772036 + ... + 4476772041.

It is an arithmetic number, because the mean of its divisors is an integer number (8953544078).

Almost surely, 2^26860632231 is an apocalyptic number.

26860632231 is a deficient number, since it is larger than the sum of its proper divisors (8953544081).

26860632231 is an equidigital number, since it uses as much as digits as its factorization.

26860632231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8953544080.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 26860632231 in words is "twenty-six billion, eight hundred sixty million, six hundred thirty-two thousand, two hundred thirty-one".