18030117739 has 2 divisors, whose sum is σ = 18030117740. Its totient is φ = 18030117738.

The previous prime is 18030117683. The next prime is 18030117817. The reversal of 18030117739 is 93771103081.

It is a weak prime.

It is an emirp because it is prime and its reverse (93771103081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18030117739 - 2²¹ = 18028020587 is a prime.

It is not a weakly prime, because it can be changed into another prime (18030117139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9015058869 + 9015058870.

It is an arithmetic number, because the mean of its divisors is an integer number (9015058870).

Almost surely, 2^18030117739 is an apocalyptic number.

18030117739 is a deficient number, since it is larger than the sum of its proper divisors (1).

18030117739 is an equidigital number, since it uses as much as digits as its factorization.

18030117739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 40.

The spelling of 18030117739 in words is "eighteen billion, thirty million, one hundred seventeen thousand, seven hundred thirty-nine".