26090442251 has 8 divisors (see below), whose sum is σ = 26227880640. Its totient is φ = 25953221952.

The previous prime is 26090442223. The next prime is 26090442281. The reversal of 26090442251 is 15224409062.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26090442251 is a prime.

It is a super-2 number, since 2×26090442251² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26090442281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188201 + ... + 295973.

It is an arithmetic number, because the mean of its divisors is an integer number (3278485080).

Almost surely, 2^26090442251 is an apocalyptic number.

26090442251 is a deficient number, since it is larger than the sum of its proper divisors (137438389).

26090442251 is a wasteful number, since it uses less digits than its factorization.

26090442251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109045.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 26090442251 in words is "twenty-six billion, ninety million, four hundred forty-two thousand, two hundred fifty-one".