14663740381 has 2 divisors, whose sum is σ = 14663740382. Its totient is φ = 14663740380.

The previous prime is 14663740379. The next prime is 14663740397. The reversal of 14663740381 is 18304736641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13902532281 + 761208100 = 117909^2 + 27590^2 .

It is a cyclic number.

It is not a de Polignac number, because 14663740381 - 2¹ = 14663740379 is a prime.

It is a super-2 number, since 2×14663740381² (a number of 21 digits) contains 22 as substring.

Together with 14663740379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14663746381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7331870190 + 7331870191.

It is an arithmetic number, because the mean of its divisors is an integer number (7331870191).

Almost surely, 2^14663740381 is an apocalyptic number.

It is an amenable number.

14663740381 is a deficient number, since it is larger than the sum of its proper divisors (1).

14663740381 is an equidigital number, since it uses as much as digits as its factorization.

14663740381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 14663740381 in words is "fourteen billion, six hundred sixty-three million, seven hundred forty thousand, three hundred eighty-one".