26252478752 has 96 divisors (see below), whose sum is σ = 59592153600. Its totient is φ = 11300179968.

The previous prime is 26252478751. The next prime is 26252478779. The reversal of 26252478752 is 25787425262.

It is a happy number.

It is a super-2 number, since 2×26252478752² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26252478752.

It is not an unprimeable number, because it can be changed into a prime (26252478751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255953 + ... + 343535.

It is an arithmetic number, because the mean of its divisors is an integer number (620751600).

Almost surely, 2^26252478752 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 26252478752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29796076800).

26252478752 is an abundant number, since it is smaller than the sum of its proper divisors (33339674848).

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

26252478752 is a wasteful number, since it uses less digits than its factorization.

26252478752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87658 (or 87650 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 50.

The spelling of 26252478752 in words is "twenty-six billion, two hundred fifty-two million, four hundred seventy-eight thousand, seven hundred fifty-two".