26744226664 has 16 divisors (see below), whose sum is σ = 50364404100. Its totient is φ = 13313718912.

The previous prime is 26744226661. The next prime is 26744226671. The reversal of 26744226664 is 46662244762.

It can be written as a sum of positive squares in 2 ways, for example, as 26327658564 + 416568100 = 162258^2 + 20410^2 .

It is not an unprimeable number, because it can be changed into a prime (26744226661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7297357 + ... + 7301020.

Almost surely, 2^26744226664 is an apocalyptic number.

It is an amenable number.

26744226664 is a deficient number, since it is larger than the sum of its proper divisors (23620177436).

26744226664 is a wasteful number, since it uses less digits than its factorization.

26744226664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14598612 (or 14598608 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 49.

The spelling of 26744226664 in words is "twenty-six billion, seven hundred forty-four million, two hundred twenty-six thousand, six hundred sixty-four".