18220456483 has 2 divisors, whose sum is σ = 18220456484. Its totient is φ = 18220456482.

The previous prime is 18220456439. The next prime is 18220456531. The reversal of 18220456483 is 38465402281.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18220456483 - 2⁹ = 18220455971 is a prime.

It is not a weakly prime, because it can be changed into another prime (18220456403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9110228241 + 9110228242.

It is an arithmetic number, because the mean of its divisors is an integer number (9110228242).

Almost surely, 2^18220456483 is an apocalyptic number.

18220456483 is a deficient number, since it is larger than the sum of its proper divisors (1).

18220456483 is an equidigital number, since it uses as much as digits as its factorization.

18220456483 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 18220456483 in words is "eighteen billion, two hundred twenty million, four hundred fifty-six thousand, four hundred eighty-three".