26139744896 has 16 divisors (see below), whose sum is σ = 52075273290. Its totient is φ = 13069872384.

The previous prime is 26139744889. The next prime is 26139744899. The reversal of 26139744896 is 69844793162.

It can be written as a sum of positive squares in only one way, i.e., 23018958400 + 3120786496 = 151720^2 + 55864^2 .

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

It is not an unprimeable number, because it can be changed into a prime (26139744899) by changing a digit.

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, 102108251 + ... + 102108506.

Almost surely, 2^26139744896 is an apocalyptic number.

It is an amenable number.

26139744896 is a deficient number, since it is larger than the sum of its proper divisors (25935528394).

26139744896 is an equidigital number, since it uses as much as digits as its factorization.

26139744896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204216771 (or 204216759 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 59.

The spelling of 26139744896 in words is "twenty-six billion, one hundred thirty-nine million, seven hundred forty-four thousand, eight hundred ninety-six".