26766272544 has 144 divisors (see below), whose sum is σ = 77583373056. Its totient is φ = 8073838080.

The previous prime is 26766272539. The next prime is 26766272569. The reversal of 26766272544 is 44527266762.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2585202 + ... + 2595534.

It is an arithmetic number, because the mean of its divisors is an integer number (538773424).

Almost surely, 2^26766272544 is an apocalyptic number.

26766272544 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 26766272544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38791686528).

26766272544 is an abundant number, since it is smaller than the sum of its proper divisors (50817100512).

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

26766272544 is a wasteful number, since it uses less digits than its factorization.

26766272544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10591 (or 10572 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 51.

The spelling of 26766272544 in words is "twenty-six billion, seven hundred sixty-six million, two hundred seventy-two thousand, five hundred forty-four".