13787828797 has 2 divisors, whose sum is σ = 13787828798. Its totient is φ = 13787828796.

The previous prime is 13787828779. The next prime is 13787828827. The reversal of 13787828797 is 79782878731.

Together with previous prime (13787828779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12763124676 + 1024704121 = 112974^2 + 32011^2 .

It is a cyclic number.

It is not a de Polignac number, because 13787828797 - 2¹¹ = 13787826749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13787828707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6893914398 + 6893914399.

It is an arithmetic number, because the mean of its divisors is an integer number (6893914399).

Almost surely, 2^13787828797 is an apocalyptic number.

It is an amenable number.

13787828797 is a deficient number, since it is larger than the sum of its proper divisors (1).

13787828797 is an equidigital number, since it uses as much as digits as its factorization.

13787828797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66382848, while the sum is 67.

The spelling of 13787828797 in words is "thirteen billion, seven hundred eighty-seven million, eight hundred twenty-eight thousand, seven hundred ninety-seven".