26556767272 has 64 divisors (see below), whose sum is σ = 58780016640. Its totient is φ = 11007403200.

The previous prime is 26556767257. The next prime is 26556767299. The reversal of 26556767272 is 27276765562.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3487293 + ... + 3494899.

It is an arithmetic number, because the mean of its divisors is an integer number (918437760).

Almost surely, 2^26556767272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26556767272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29390008320).

26556767272 is an abundant number, since it is smaller than the sum of its proper divisors (32223249368).

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

26556767272 is a wasteful number, since it uses less digits than its factorization.

26556767272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9662 (or 9658 counting only the distinct ones).

The product of its digits is 14817600, while the sum is 55.

The spelling of 26556767272 in words is "twenty-six billion, five hundred fifty-six million, seven hundred sixty-seven thousand, two hundred seventy-two".