26350261091 has 16 divisors (see below), whose sum is σ = 33551262720. Its totient is φ = 20095802880.

The previous prime is 26350261087. The next prime is 26350261099. The reversal of 26350261091 is 19016205362.

It is a cyclic number.

It is not a de Polignac number, because 26350261091 - 2² = 26350261087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26350261099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3636926 + ... + 3644163.

It is an arithmetic number, because the mean of its divisors is an integer number (2096953920).

Almost surely, 2^26350261091 is an apocalyptic number.

26350261091 is a deficient number, since it is larger than the sum of its proper divisors (7201001629).

26350261091 is a wasteful number, since it uses less digits than its factorization.

26350261091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7281154.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 26350261091 in words is "twenty-six billion, three hundred fifty million, two hundred sixty-one thousand, ninety-one".