18146057387 has 2 divisors, whose sum is σ = 18146057388. Its totient is φ = 18146057386.

The previous prime is 18146057381. The next prime is 18146057399. The reversal of 18146057387 is 78375064181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18146057387 - 2²² = 18141863083 is a prime.

It is not a weakly prime, because it can be changed into another prime (18146057381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9073028693 + 9073028694.

It is an arithmetic number, because the mean of its divisors is an integer number (9073028694).

Almost surely, 2^18146057387 is an apocalyptic number.

18146057387 is a deficient number, since it is larger than the sum of its proper divisors (1).

18146057387 is an equidigital number, since it uses as much as digits as its factorization.

18146057387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 18146057387 in words is "eighteen billion, one hundred forty-six million, fifty-seven thousand, three hundred eighty-seven".