26452664065 has 8 divisors (see below), whose sum is σ = 32057486568. Its totient is φ = 20952604800.

The previous prime is 26452664009. The next prime is 26452664081. The reversal of 26452664065 is 56046625462.

It can be written as a sum of positive squares in 4 ways, for example, as 10628785216 + 15823878849 = 103096^2 + 125793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26452664065 - 2⁹ = 26452663553 is a prime.

It is a super-2 number, since 2×26452664065² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26190252 + ... + 26191261.

It is an arithmetic number, because the mean of its divisors is an integer number (4007185821).

Almost surely, 2^26452664065 is an apocalyptic number.

It is an amenable number.

26452664065 is a deficient number, since it is larger than the sum of its proper divisors (5604822503).

26452664065 is a wasteful number, since it uses less digits than its factorization.

26452664065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52381619.

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 26452664065 in words is "twenty-six billion, four hundred fifty-two million, six hundred sixty-four thousand, sixty-five".