26769209643 has 16 divisors (see below), whose sum is σ = 43263369600. Its totient is φ = 16223763240.

The previous prime is 26769209633. The next prime is 26769209651. The reversal of 26769209643 is 34690296762.

It is not a de Polignac number, because 26769209643 - 2¹⁰ = 26769208619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26769209643.

It is not an unprimeable number, because it can be changed into a prime (26769209633) 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 in 15 ways as a sum of consecutive naturals, for example, 45065713 + ... + 45066306.

It is an arithmetic number, because the mean of its divisors is an integer number (2703960600).

Almost surely, 2^26769209643 is an apocalyptic number.

26769209643 is a deficient number, since it is larger than the sum of its proper divisors (16494159957).

26769209643 is a wasteful number, since it uses less digits than its factorization.

26769209643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90132039 (or 90132033 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 26769209643 in words is "twenty-six billion, seven hundred sixty-nine million, two hundred nine thousand, six hundred forty-three".