26206917491886 has 16 divisors (see below), whose sum is σ = 52877674232784. Its totient is φ = 8658332622464.

The previous prime is 26206917491819. The next prime is 26206917491891. The reversal of 26206917491886 is 68819471960262.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26206917491886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19326634641 + ... + 19326635996.

It is an arithmetic number, because the mean of its divisors is an integer number (3304854639549).

Almost surely, 2^{26206917491886} is an apocalyptic number.

26206917491886 is an abundant number, since it is smaller than the sum of its proper divisors (26670756740898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26206917491886 is a wasteful number, since it uses less digits than its factorization.

26206917491886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38653270755.

The product of its (nonzero) digits is 125411328, while the sum is 69.

The spelling of 26206917491886 in words is "twenty-six trillion, two hundred six billion, nine hundred seventeen million, four hundred ninety-one thousand, eight hundred eighty-six".