26640261056 has 28 divisors (see below), whose sum is σ = 52909180440. Its totient is φ = 13308814080.

The previous prime is 26640261049. The next prime is 26640261101. The reversal of 26640261056 is 65016204662.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 100646 + ... + 251813.

Almost surely, 2^26640261056 is an apocalyptic number.

It is an amenable number.

26640261056 is a deficient number, since it is larger than the sum of its proper divisors (26268919384).

26640261056 is a wasteful number, since it uses less digits than its factorization.

26640261056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353652 (or 353642 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 26640261056 in words is "twenty-six billion, six hundred forty million, two hundred sixty-one thousand, fifty-six".