26027664626965 has 4 divisors (see below), whose sum is σ = 31233197552364. Its totient is φ = 20822131701568.

The previous prime is 26027664626963. The next prime is 26027664627031. The reversal of 26027664626965 is 56962646672062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3452375815249 + 22575288811716 = 1858057^2 + 4751346^2 .

It is a cyclic number.

It is not a de Polignac number, because 26027664626965 - 2¹ = 26027664626963 is a prime.

It is a super-2 number, since 2×26027664626965² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26027664626965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26027664626963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2602766462692 + ... + 2602766462701.

It is an arithmetic number, because the mean of its divisors is an integer number (7808299388091).

Almost surely, 2^{26027664626965} is an apocalyptic number.

It is an amenable number.

26027664626965 is a deficient number, since it is larger than the sum of its proper divisors (5205532925399).

26027664626965 is an equidigital number, since it uses as much as digits as its factorization.

26027664626965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205532925398.

The product of its (nonzero) digits is 470292480, while the sum is 67.

The spelling of 26027664626965 in words is "twenty-six trillion, twenty-seven billion, six hundred sixty-four million, six hundred twenty-six thousand, nine hundred sixty-five".