13743887987 has 2 divisors, whose sum is σ = 13743887988. Its totient is φ = 13743887986.

The previous prime is 13743887917. The next prime is 13743888091. The reversal of 13743887987 is 78978834731.

It is a weak prime.

It is an emirp because it is prime and its reverse (78978834731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13743887987 - 2¹⁶ = 13743822451 is a prime.

It is not a weakly prime, because it can be changed into another prime (13743887917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6871943993 + 6871943994.

It is an arithmetic number, because the mean of its divisors is an integer number (6871943994).

Almost surely, 2^13743887987 is an apocalyptic number.

13743887987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13743887987 is an equidigital number, since it uses as much as digits as its factorization.

13743887987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56899584, while the sum is 65.

The spelling of 13743887987 in words is "thirteen billion, seven hundred forty-three million, eight hundred eighty-seven thousand, nine hundred eighty-seven".