26454786965 has 8 divisors (see below), whose sum is σ = 31750994520. Its totient is φ = 21160329472.

The previous prime is 26454786961. The next prime is 26454786973. The reversal of 26454786965 is 56968745462.

It can be written as a sum of positive squares in 4 ways, for example, as 558896881 + 25895890084 = 23641^2 + 160922^2 .

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 26454786965 - 2² = 26454786961 is a prime.

It is a super-2 number, since 2×26454786965² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26454786898 and 26454786907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26454786961) 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, 404024 + ... + 464913.

It is an arithmetic number, because the mean of its divisors is an integer number (3968874315).

Almost surely, 2^26454786965 is an apocalyptic number.

It is an amenable number.

26454786965 is a deficient number, since it is larger than the sum of its proper divisors (5296207555).

26454786965 is an equidigital number, since it uses as much as digits as its factorization.

26454786965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875031.

The product of its digits is 87091200, while the sum is 62.

The spelling of 26454786965 in words is "twenty-six billion, four hundred fifty-four million, seven hundred eighty-six thousand, nine hundred sixty-five".