26898985911 has 16 divisors (see below), whose sum is σ = 40991243264. Its totient is φ = 15369981984.

The previous prime is 26898985877. The next prime is 26898985969. The reversal of 26898985911 is 11958989862.

It is a de Polignac number, because none of the positive numbers 2^k-26898985911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26898985111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634305 + ... + 675381.

It is an arithmetic number, because the mean of its divisors is an integer number (2561952704).

Almost surely, 2^26898985911 is an apocalyptic number.

26898985911 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26898985911 is a deficient number, since it is larger than the sum of its proper divisors (14092257353).

26898985911 is a wasteful number, since it uses less digits than its factorization.

26898985911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72270.

The product of its digits is 22394880, while the sum is 66.

The spelling of 26898985911 in words is "twenty-six billion, eight hundred ninety-eight million, nine hundred eighty-five thousand, nine hundred eleven".