26261447355 has 144 divisors (see below), whose sum is σ = 54087048288. Its totient is φ = 11708928000.

The previous prime is 26261447327. The next prime is 26261447369. The reversal of 26261447355 is 55374416262.

26261447355 is a `hidden beast` number, since 2 + 626 + 14 + 4 + 7 + 3 + 5 + 5 = 666.

It is not a de Polignac number, because 26261447355 - 2¹⁴ = 26261430971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 26261447355.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 24986580 + ... + 24987630.

It is an arithmetic number, because the mean of its divisors is an integer number (375604502).

Almost surely, 2^26261447355 is an apocalyptic number.

26261447355 is an abundant number, since it is smaller than the sum of its proper divisors (27825600933).

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

26261447355 is a wasteful number, since it uses less digits than its factorization.

26261447355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450 (or 1436 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The spelling of 26261447355 in words is "twenty-six billion, two hundred sixty-one million, four hundred forty-seven thousand, three hundred fifty-five".