26440875887686 has 32 divisors (see below), whose sum is σ = 42977706438240. Its totient is φ = 12127703083776.

The previous prime is 26440875887651. The next prime is 26440875887693. The reversal of 26440875887686 is 68678857804462.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5653690 + ... + 9211186.

It is an arithmetic number, because the mean of its divisors is an integer number (1343053326195).

Almost surely, 2^{26440875887686} is an apocalyptic number.

26440875887686 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

26440875887686 is a deficient number, since it is larger than the sum of its proper divisors (16536830550554).

26440875887686 is a wasteful number, since it uses less digits than its factorization.

26440875887686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559288.

The product of its (nonzero) digits is 6936330240, while the sum is 79.

The spelling of 26440875887686 in words is "twenty-six trillion, four hundred forty billion, eight hundred seventy-five million, eight hundred eighty-seven thousand, six hundred eighty-six".