26266700772 has 144 divisors (see below), whose sum is σ = 73705282560. Its totient is φ = 7836998400.

The previous prime is 26266700753. The next prime is 26266700773. The reversal of 26266700772 is 27700766262.

It is not an unprimeable number, because it can be changed into a prime (26266700773) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2020429 + ... + 2033387.

It is an arithmetic number, because the mean of its divisors is an integer number (511842240).

Almost surely, 2^26266700772 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 26266700772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36852641280).

26266700772 is an abundant number, since it is smaller than the sum of its proper divisors (47438581788).

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

26266700772 is a wasteful number, since it uses less digits than its factorization.

26266700772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13114 (or 13109 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The spelling of 26266700772 in words is "twenty-six billion, two hundred sixty-six million, seven hundred thousand, seven hundred seventy-two".