26390125249 has 8 divisors (see below), whose sum is σ = 27083994080. Its totient is φ = 25699899456.

The previous prime is 26390125247. The next prime is 26390125261. The reversal of 26390125249 is 94252109362.

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

It is a cyclic number.

It is not a de Polignac number, because 26390125249 - 2¹ = 26390125247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26390125241) by changing a digit.

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, 896079 + ... + 925060.

It is an arithmetic number, because the mean of its divisors is an integer number (3385499260).

Almost surely, 2^26390125249 is an apocalyptic number.

It is an amenable number.

26390125249 is a deficient number, since it is larger than the sum of its proper divisors (693868831).

26390125249 is a wasteful number, since it uses less digits than its factorization.

26390125249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821519.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 26390125249 in words is "twenty-six billion, three hundred ninety million, one hundred twenty-five thousand, two hundred forty-nine".