26575515464 has 16 divisors (see below), whose sum is σ = 51044435820. Its totient is φ = 12963665920.

The previous prime is 26575515457. The next prime is 26575515481. The reversal of 26575515464 is 46451557562.

It can be written as a sum of positive squares in 2 ways, for example, as 25810992964 + 764522500 = 160658^2 + 27650^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40511129 + ... + 40511784.

Almost surely, 2^26575515464 is an apocalyptic number.

It is an amenable number.

26575515464 is a deficient number, since it is larger than the sum of its proper divisors (24468920356).

26575515464 is a wasteful number, since it uses less digits than its factorization.

26575515464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81022960 (or 81022956 counting only the distinct ones).

The product of its digits is 5040000, while the sum is 50.

The spelling of 26575515464 in words is "twenty-six billion, five hundred seventy-five million, five hundred fifteen thousand, four hundred sixty-four".