26264484865 has 8 divisors (see below), whose sum is σ = 31648160808. Its totient is φ = 20924401920.

The previous prime is 26264484847. The next prime is 26264484877. The reversal of 26264484865 is 56848446262.

It can be written as a sum of positive squares in 4 ways, for example, as 4709253376 + 21555231489 = 68624^2 + 146817^2 .

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

It is not a de Polignac number, because 26264484865 - 2⁹ = 26264484353 is a prime.

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, 10896922 + ... + 10899331.

It is an arithmetic number, because the mean of its divisors is an integer number (3956020101).

Almost surely, 2^26264484865 is an apocalyptic number.

It is an amenable number.

26264484865 is a deficient number, since it is larger than the sum of its proper divisors (5383675943).

26264484865 is a wasteful number, since it uses less digits than its factorization.

26264484865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21796499.

The product of its digits is 17694720, while the sum is 55.

The spelling of 26264484865 in words is "twenty-six billion, two hundred sixty-four million, four hundred eighty-four thousand, eight hundred sixty-five".