26091940897 has 8 divisors (see below), whose sum is σ = 28479571200. Its totient is φ = 23706916560.

The previous prime is 26091940877. The next prime is 26091940921. The reversal of 26091940897 is 79804919062.

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 26091940897 - 2⁷ = 26091940769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26091940877) 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, 630522 + ... + 670627.

It is an arithmetic number, because the mean of its divisors is an integer number (3559946400).

Almost surely, 2^26091940897 is an apocalyptic number.

It is an amenable number.

26091940897 is a deficient number, since it is larger than the sum of its proper divisors (2387630303).

26091940897 is a wasteful number, since it uses less digits than its factorization.

26091940897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302983.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 26091940897 in words is "twenty-six billion, ninety-one million, nine hundred forty thousand, eight hundred ninety-seven".