18338547207 has 16 divisors (see below), whose sum is σ = 26589438432. Its totient is φ = 11195550720.

The previous prime is 18338547089. The next prime is 18338547217. The reversal of 18338547207 is 70274583381.

It is not a de Polignac number, because 18338547207 - 2¹⁶ = 18338481671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18338547217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4857294 + ... + 4861067.

It is an arithmetic number, because the mean of its divisors is an integer number (1661839902).

Almost surely, 2^18338547207 is an apocalyptic number.

18338547207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

18338547207 is a deficient number, since it is larger than the sum of its proper divisors (8250891225).

18338547207 is a wasteful number, since it uses less digits than its factorization.

18338547207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9718418.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 18338547207 in words is "eighteen billion, three hundred thirty-eight million, five hundred forty-seven thousand, two hundred seven".