26556258128 has 40 divisors (see below), whose sum is σ = 53133432576. Its totient is φ = 12844742400.

The previous prime is 26556258119. The next prime is 26556258139. The reversal of 26556258128 is 82185265562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455623 + ... + 1473753.

Almost surely, 2^26556258128 is an apocalyptic number.

It is an amenable number.

26556258128 is an abundant number, since it is smaller than the sum of its proper divisors (26577174448).

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

26556258128 is a wasteful number, since it uses less digits than its factorization.

26556258128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21123 (or 21117 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 50.

The spelling of 26556258128 in words is "twenty-six billion, five hundred fifty-six million, two hundred fifty-eight thousand, one hundred twenty-eight".