16113981427 has 2 divisors, whose sum is σ = 16113981428. Its totient is φ = 16113981426.

The previous prime is 16113981413. The next prime is 16113981431. The reversal of 16113981427 is 72418931161.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16113981427 is a prime.

It is not a weakly prime, because it can be changed into another prime (16113981467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8056990713 + 8056990714.

It is an arithmetic number, because the mean of its divisors is an integer number (8056990714).

Almost surely, 2^16113981427 is an apocalyptic number.

16113981427 is a deficient number, since it is larger than the sum of its proper divisors (1).

16113981427 is an equidigital number, since it uses as much as digits as its factorization.

16113981427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 43.

The spelling of 16113981427 in words is "sixteen billion, one hundred thirteen million, nine hundred eighty-one thousand, four hundred twenty-seven".