18542356307 has 2 divisors, whose sum is σ = 18542356308. Its totient is φ = 18542356306.

The previous prime is 18542356279. The next prime is 18542356319. The reversal of 18542356307 is 70365324581.

It is a strong prime.

It is an emirp because it is prime and its reverse (70365324581) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18542356307 - 2⁸ = 18542356051 is a prime.

It is a super-3 number, since 3×18542356307³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (18542356507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9271178153 + 9271178154.

It is an arithmetic number, because the mean of its divisors is an integer number (9271178154).

Almost surely, 2^18542356307 is an apocalyptic number.

18542356307 is a deficient number, since it is larger than the sum of its proper divisors (1).

18542356307 is an equidigital number, since it uses as much as digits as its factorization.

18542356307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 18542356307 in words is "eighteen billion, five hundred forty-two million, three hundred fifty-six thousand, three hundred seven".