26255807251015 has 8 divisors (see below), whose sum is σ = 31632494474448. Its totient is φ = 20920961952000.

The previous prime is 26255807251007. The next prime is 26255807251031. The reversal of 26255807251015 is 51015270855262.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26255807251015 - 2³ = 26255807251007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26255807251015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10460479722 + ... + 10460482231.

It is an arithmetic number, because the mean of its divisors is an integer number (3954061809306).

Almost surely, 2^{26255807251015} is an apocalyptic number.

26255807251015 is a deficient number, since it is larger than the sum of its proper divisors (5376687223433).

26255807251015 is a wasteful number, since it uses less digits than its factorization.

26255807251015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20920962209.

The product of its (nonzero) digits is 1680000, while the sum is 49.

The spelling of 26255807251015 in words is "twenty-six trillion, two hundred fifty-five billion, eight hundred seven million, two hundred fifty-one thousand, fifteen".