26147269872 has 30 divisors (see below), whose sum is σ = 73176040392. Its totient is φ = 8715756576.

The previous prime is 26147269859. The next prime is 26147269903. The reversal of 26147269872 is 27896274162.

26147269872 is a `hidden beast` number, since 261 + 47 + 269 + 87 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90788988 + ... + 90789275.

Almost surely, 2^26147269872 is an apocalyptic number.

It is an amenable number.

26147269872 is an abundant number, since it is smaller than the sum of its proper divisors (47028770520).

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

26147269872 is a wasteful number, since it uses less digits than its factorization.

26147269872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181578277 (or 181578268 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 26147269872 in words is "twenty-six billion, one hundred forty-seven million, two hundred sixty-nine thousand, eight hundred seventy-two".