18587294107 has 2 divisors, whose sum is σ = 18587294108. Its totient is φ = 18587294106.

The previous prime is 18587294093. The next prime is 18587294119. The reversal of 18587294107 is 70149278581.

It is a strong prime.

It is an emirp because it is prime and its reverse (70149278581) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18587294107 - 2¹⁹ = 18586769819 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (18587294147) 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, 9293647053 + 9293647054.

It is an arithmetic number, because the mean of its divisors is an integer number (9293647054).

Almost surely, 2^18587294107 is an apocalyptic number.

18587294107 is a deficient number, since it is larger than the sum of its proper divisors (1).

18587294107 is an equidigital number, since it uses as much as digits as its factorization.

18587294107 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 52.

The spelling of 18587294107 in words is "eighteen billion, five hundred eighty-seven million, two hundred ninety-four thousand, one hundred seven".