26042640965 has 16 divisors (see below), whose sum is σ = 34923704256. Its totient is φ = 18478147200.

The previous prime is 26042640917. The next prime is 26042641013. The reversal of 26042640965 is 56904624062.

It is an interprime number because it is at equal distance from previous prime (26042640917) and next prime (26042641013).

It is not a de Polignac number, because 26042640965 - 2⁸ = 26042640709 is a prime.

It is a super-3 number, since 3×26042640965³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5772167 + ... + 5776676.

It is an arithmetic number, because the mean of its divisors is an integer number (2182731516).

Almost surely, 2^26042640965 is an apocalyptic number.

It is an amenable number.

26042640965 is a deficient number, since it is larger than the sum of its proper divisors (8881063291).

26042640965 is a wasteful number, since it uses less digits than its factorization.

26042640965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11548900.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 26042640965 in words is "twenty-six billion, forty-two million, six hundred forty thousand, nine hundred sixty-five".