26696383549 has 6 divisors (see below), whose sum is σ = 29343958910. Its totient is φ = 24269439480.

The previous prime is 26696383499. The next prime is 26696383559. The reversal of 26696383549 is 94538369662.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23344784100 + 3351599449 = 152790^2 + 57893^2 .

It is not a de Polignac number, because 26696383549 - 2⁷ = 26696383421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26696383559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110315514 + ... + 110315755.

Almost surely, 2^26696383549 is an apocalyptic number.

It is an amenable number.

26696383549 is a deficient number, since it is larger than the sum of its proper divisors (2647575361).

26696383549 is a wasteful number, since it uses less digits than its factorization.

26696383549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220631291 (or 220631280 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 61.

The spelling of 26696383549 in words is "twenty-six billion, six hundred ninety-six million, three hundred eighty-three thousand, five hundred forty-nine".