13777643923 has 2 divisors, whose sum is σ = 13777643924. Its totient is φ = 13777643922.

The previous prime is 13777643917. The next prime is 13777644029. The reversal of 13777643923 is 32934677731.

13777643923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13777643923 is a prime.

It is not a weakly prime, because it can be changed into another prime (13777643723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6888821961 + 6888821962.

It is an arithmetic number, because the mean of its divisors is an integer number (6888821962).

Almost surely, 2^13777643923 is an apocalyptic number.

13777643923 is a deficient number, since it is larger than the sum of its proper divisors (1).

13777643923 is an equidigital number, since it uses as much as digits as its factorization.

13777643923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4000752, while the sum is 52.

The spelling of 13777643923 in words is "thirteen billion, seven hundred seventy-seven million, six hundred forty-three thousand, nine hundred twenty-three".