26253909804645 has 24 divisors (see below), whose sum is σ = 45507455375616. Its totient is φ = 14001876496608.

The previous prime is 26253909804637. The next prime is 26253909804653. The reversal of 26253909804645 is 54640890935262.

It is a happy number.

26253909804645 is a `hidden beast` number, since 2 + 6 + 2 + 5 + 3 + 90 + 9 + 80 + 464 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (26253909804637) and next prime (26253909804653).

It is not a de Polignac number, because 26253909804645 - 2³ = 26253909804637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1272477 + ... + 7357106.

It is an arithmetic number, because the mean of its divisors is an integer number (1896143973984).

Almost surely, 2^{26253909804645} is an apocalyptic number.

It is an amenable number.

26253909804645 is a deficient number, since it is larger than the sum of its proper divisors (19253545570971).

26253909804645 is a wasteful number, since it uses less digits than its factorization.

26253909804645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697201 (or 8697198 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 63.

The spelling of 26253909804645 in words is "twenty-six trillion, two hundred fifty-three billion, nine hundred nine million, eight hundred four thousand, six hundred forty-five".