26156618368 has 16 divisors (see below), whose sum is σ = 52108888410. Its totient is φ = 13078309120.

The previous prime is 26156618317. The next prime is 26156618381. The reversal of 26156618368 is 86381665162.

It can be written as a sum of positive squares in only one way, i.e., 24039882304 + 2116736064 = 155048^2 + 46008^2 .

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 102174163 + ... + 102174418.

Almost surely, 2^26156618368 is an apocalyptic number.

It is an amenable number.

26156618368 is a deficient number, since it is larger than the sum of its proper divisors (25952270042).

26156618368 is an equidigital number, since it uses as much as digits as its factorization.

26156618368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204348595 (or 204348583 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 52.

The spelling of 26156618368 in words is "twenty-six billion, one hundred fifty-six million, six hundred eighteen thousand, three hundred sixty-eight".