26899945404 has 24 divisors (see below), whose sum is σ = 62970999168. Its totient is φ = 8937439920.

The previous prime is 26899945379. The next prime is 26899945409. The reversal of 26899945404 is 40454999862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26899945409) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3647232 + ... + 3654599.

It is an arithmetic number, because the mean of its divisors is an integer number (2623791632).

Almost surely, 2^26899945404 is an apocalyptic number.

It is an amenable number.

26899945404 is an abundant number, since it is smaller than the sum of its proper divisors (36071053764).

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

26899945404 is a wasteful number, since it uses less digits than its factorization.

26899945404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7302145 (or 7302143 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 26899945404 in words is "twenty-six billion, eight hundred ninety-nine million, nine hundred forty-five thousand, four hundred four".