26773631893 has 2 divisors, whose sum is σ = 26773631894. Its totient is φ = 26773631892.

The previous prime is 26773631887. The next prime is 26773632023. The reversal of 26773631893 is 39813637762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26739444484 + 34187409 = 163522^2 + 5847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26773631893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26773634893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13386815946 + 13386815947.

It is an arithmetic number, because the mean of its divisors is an integer number (13386815947).

Almost surely, 2^26773631893 is an apocalyptic number.

It is an amenable number.

26773631893 is a deficient number, since it is larger than the sum of its proper divisors (1).

26773631893 is an equidigital number, since it uses as much as digits as its factorization.

26773631893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 55.

The spelling of 26773631893 in words is "twenty-six billion, seven hundred seventy-three million, six hundred thirty-one thousand, eight hundred ninety-three".