13928003861 has 2 divisors, whose sum is σ = 13928003862. Its totient is φ = 13928003860.

The previous prime is 13928003773. The next prime is 13928003863. The reversal of 13928003861 is 16830082931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7513595761 + 6414408100 = 86681^2 + 80090^2 .

It is a cyclic number.

It is not a de Polignac number, because 13928003861 - 2²⁶ = 13860894997 is a prime.

It is a Sophie Germain prime.

Together with 13928003863, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13928003863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6964001930 + 6964001931.

It is an arithmetic number, because the mean of its divisors is an integer number (6964001931).

Almost surely, 2^13928003861 is an apocalyptic number.

It is an amenable number.

13928003861 is a deficient number, since it is larger than the sum of its proper divisors (1).

13928003861 is an equidigital number, since it uses as much as digits as its factorization.

13928003861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 13928003861 in words is "thirteen billion, nine hundred twenty-eight million, three thousand, eight hundred sixty-one".