26761864906 has 16 divisors (see below), whose sum is σ = 46079591616. Its totient is φ = 11418843456.

The previous prime is 26761864903. The next prime is 26761864937. The reversal of 26761864906 is 60946816762.

It is not an unprimeable number, because it can be changed into a prime (26761864901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4207311 + ... + 4213666.

It is an arithmetic number, because the mean of its divisors is an integer number (2879974476).

Almost surely, 2^26761864906 is an apocalyptic number.

26761864906 is a deficient number, since it is larger than the sum of its proper divisors (19317726710).

26761864906 is a wasteful number, since it uses less digits than its factorization.

26761864906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8421213.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 26761864906 in words is "twenty-six billion, seven hundred sixty-one million, eight hundred sixty-four thousand, nine hundred six".