18128083507 has 2 divisors, whose sum is σ = 18128083508. Its totient is φ = 18128083506.

The previous prime is 18128083481. The next prime is 18128083553. The reversal of 18128083507 is 70538082181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18128083507 - 2²³ = 18119694899 is a prime.

It is not a weakly prime, because it can be changed into another prime (18128083007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9064041753 + 9064041754.

It is an arithmetic number, because the mean of its divisors is an integer number (9064041754).

Almost surely, 2^18128083507 is an apocalyptic number.

18128083507 is a deficient number, since it is larger than the sum of its proper divisors (1).

18128083507 is an equidigital number, since it uses as much as digits as its factorization.

18128083507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 18128083507 in words is "eighteen billion, one hundred twenty-eight million, eighty-three thousand, five hundred seven".