26526009856 has 40 divisors (see below), whose sum is σ = 54000270324. Its totient is φ = 13012746240.

The previous prime is 26526009827. The next prime is 26526009859. The reversal of 26526009856 is 65890062562.

It can be written as a sum of positive squares in 2 ways, for example, as 23568390400 + 2957619456 = 153520^2 + 54384^2 .

It is not an unprimeable number, because it can be changed into a prime (26526009859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461625 + ... + 515896.

Almost surely, 2^26526009856 is an apocalyptic number.

It is an amenable number.

26526009856 is an abundant number, since it is smaller than the sum of its proper divisors (27474260468).

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

26526009856 is an frugal number, since it uses more digits than its factorization.

26526009856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977592 (or 977576 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 26526009856 in words is "twenty-six billion, five hundred twenty-six million, nine thousand, eight hundred fifty-six".