26288648264 has 8 divisors (see below), whose sum is σ = 49291215510. Its totient is φ = 13144324128.

The previous prime is 26288648233. The next prime is 26288648279. The reversal of 26288648264 is 46284688262.

It can be written as a sum of positive squares in only one way, i.e., 24677268100 + 1611380164 = 157090^2 + 40142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1643040509 + ... + 1643040524.

Almost surely, 2^26288648264 is an apocalyptic number.

It is an amenable number.

26288648264 is a deficient number, since it is larger than the sum of its proper divisors (23002567246).

26288648264 is a wasteful number, since it uses less digits than its factorization.

26288648264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286081039 (or 3286081035 counting only the distinct ones).

The product of its digits is 14155776, while the sum is 56.

The spelling of 26288648264 in words is "twenty-six billion, two hundred eighty-eight million, six hundred forty-eight thousand, two hundred sixty-four".