26644132630444 has 24 divisors (see below), whose sum is σ = 53385684423680. Its totient is φ = 11398038449616.

The previous prime is 26644132630411. The next prime is 26644132630447. The reversal of 26644132630444 is 44403623144662.

It is not an unprimeable number, because it can be changed into a prime (26644132630447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869798364 + ... + 869828995.

Almost surely, 2^{26644132630444} is an apocalyptic number.

It is an amenable number.

26644132630444 is an abundant number, since it is smaller than the sum of its proper divisors (26741551793236).

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

26644132630444 is a wasteful number, since it uses less digits than its factorization.

26644132630444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739627917 (or 1739627915 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 49.

The spelling of 26644132630444 in words is "twenty-six trillion, six hundred forty-four billion, one hundred thirty-two million, six hundred thirty thousand, four hundred forty-four".