26306569632 has 144 divisors (see below), whose sum is σ = 80494132320. Its totient is φ = 7500713472.

The previous prime is 26306569577. The next prime is 26306569633. The reversal of 26306569632 is 23696560362.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (26306569633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2388843 + ... + 2399829.

It is an arithmetic number, because the mean of its divisors is an integer number (558987030).

Almost surely, 2^26306569632 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 26306569632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40247066160).

26306569632 is an abundant number, since it is smaller than the sum of its proper divisors (54187562688).

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

26306569632 is a wasteful number, since it uses less digits than its factorization.

26306569632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11523 (or 11508 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 48.

The spelling of 26306569632 in words is "twenty-six billion, three hundred six million, five hundred sixty-nine thousand, six hundred thirty-two".