18674277607 has 2 divisors, whose sum is σ = 18674277608. Its totient is φ = 18674277606.

The previous prime is 18674277577. The next prime is 18674277649. The reversal of 18674277607 is 70677247681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18674277607 - 2²³ = 18665888999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18674277407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9337138803 + 9337138804.

It is an arithmetic number, because the mean of its divisors is an integer number (9337138804).

Almost surely, 2^18674277607 is an apocalyptic number.

18674277607 is a deficient number, since it is larger than the sum of its proper divisors (1).

18674277607 is an equidigital number, since it uses as much as digits as its factorization.

18674277607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5531904, while the sum is 55.

The spelling of 18674277607 in words is "eighteen billion, six hundred seventy-four million, two hundred seventy-seven thousand, six hundred seven".