26645231184 has 160 divisors (see below), whose sum is σ = 80994816000. Its totient is φ = 7441466880.

The previous prime is 26645231159. The next prime is 26645231189. The reversal of 26645231184 is 48113254662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26645231189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4932517 + ... + 4937915.

It is an arithmetic number, because the mean of its divisors is an integer number (506217600).

Almost surely, 2^26645231184 is an apocalyptic number.

26645231184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26645231184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40497408000).

26645231184 is an abundant number, since it is smaller than the sum of its proper divisors (54349584816).

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

26645231184 is a wasteful number, since it uses less digits than its factorization.

26645231184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6153 (or 6147 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The spelling of 26645231184 in words is "twenty-six billion, six hundred forty-five million, two hundred thirty-one thousand, one hundred eighty-four".