18674062331 has 2 divisors, whose sum is σ = 18674062332. Its totient is φ = 18674062330.

The previous prime is 18674062327. The next prime is 18674062439. The reversal of 18674062331 is 13326047681.

It is a weak prime.

It is an emirp because it is prime and its reverse (13326047681) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18674062331 - 2² = 18674062327 is a prime.

It is a super-2 number, since 2×18674062331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18674062831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9337031165 + 9337031166.

It is an arithmetic number, because the mean of its divisors is an integer number (9337031166).

Almost surely, 2^18674062331 is an apocalyptic number.

18674062331 is a deficient number, since it is larger than the sum of its proper divisors (1).

18674062331 is an equidigital number, since it uses as much as digits as its factorization.

18674062331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 18674062331 in words is "eighteen billion, six hundred seventy-four million, sixty-two thousand, three hundred thirty-one".