26206679399999 has 16 divisors (see below), whose sum is σ = 30681335596800. Its totient is φ = 21914746741440.

The previous prime is 26206679399963. The next prime is 26206679400043. The reversal of 26206679399999 is 99999397660262.

It is not a de Polignac number, because 26206679399999 - 2²⁴ = 26206662622783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26206679399999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26206679399959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27754352 + ... + 28683050.

It is an arithmetic number, because the mean of its divisors is an integer number (1917583474800).

Almost surely, 2^{26206679399999} is an apocalyptic number.

26206679399999 is a deficient number, since it is larger than the sum of its proper divisors (4474656196801).

26206679399999 is an equidigital number, since it uses as much as digits as its factorization.

26206679399999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027070.

The product of its (nonzero) digits is 9642465504, while the sum is 86.

The spelling of 26206679399999 in words is "twenty-six trillion, two hundred six billion, six hundred seventy-nine million, three hundred ninety-nine thousand, nine hundred ninety-nine".