26003491144 has 8 divisors (see below), whose sum is σ = 48756545910. Its totient is φ = 13001745568.

The previous prime is 26003491141. The next prime is 26003491187. The reversal of 26003491144 is 44119430062.

It can be written as a sum of positive squares in only one way, i.e., 22421468644 + 3582022500 = 149738^2 + 59850^2 .

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

It is not an unprimeable number, because it can be changed into a prime (26003491141) by changing a digit.

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, 1625218189 + ... + 1625218204.

Almost surely, 2^26003491144 is an apocalyptic number.

It is an amenable number.

26003491144 is a deficient number, since it is larger than the sum of its proper divisors (22753054766).

26003491144 is a wasteful number, since it uses less digits than its factorization.

26003491144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250436399 (or 3250436395 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 26003491144 in words is "twenty-six billion, three million, four hundred ninety-one thousand, one hundred forty-four".