26457260551 has 4 divisors (see below), whose sum is σ = 26659224504. Its totient is φ = 26255296600.

The previous prime is 26457260513. The next prime is 26457260561. The reversal of 26457260551 is 15506275462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26457260551 - 2²⁵ = 26423706119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26457260498 and 26457260507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26457260561) 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, 100981780 + ... + 100982041.

It is an arithmetic number, because the mean of its divisors is an integer number (6664806126).

Almost surely, 2^26457260551 is an apocalyptic number.

26457260551 is a deficient number, since it is larger than the sum of its proper divisors (201963953).

26457260551 is a wasteful number, since it uses less digits than its factorization.

26457260551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201963952.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 26457260551 in words is "twenty-six billion, four hundred fifty-seven million, two hundred sixty thousand, five hundred fifty-one".