26269734644 has 6 divisors (see below), whose sum is σ = 45972035634. Its totient is φ = 13134867320.

The previous prime is 26269734643. The next prime is 26269734661. The reversal of 26269734644 is 44643796262.

It can be written as a sum of positive squares in only one way, i.e., 18608233744 + 7661500900 = 136412^2 + 87530^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26269734643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3283716827 + ... + 3283716834.

It is an arithmetic number, because the mean of its divisors is an integer number (7662005939).

Almost surely, 2^26269734644 is an apocalyptic number.

It is an amenable number.

26269734644 is a deficient number, since it is larger than the sum of its proper divisors (19702300990).

26269734644 is a wasteful number, since it uses less digits than its factorization.

26269734644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6567433665 (or 6567433663 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 53.

The spelling of 26269734644 in words is "twenty-six billion, two hundred sixty-nine million, seven hundred thirty-four thousand, six hundred forty-four".