18622403485 has 16 divisors (see below), whose sum is σ = 25555815936. Its totient is φ = 12761388288.

The previous prime is 18622403479. The next prime is 18622403539. The reversal of 18622403485 is 58430422681.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18622403485 - 2⁵ = 18622403453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116949 + ... + 225658.

It is an arithmetic number, because the mean of its divisors is an integer number (1597238496).

Almost surely, 2^18622403485 is an apocalyptic number.

It is an amenable number.

18622403485 is a deficient number, since it is larger than the sum of its proper divisors (6933412451).

18622403485 is a wasteful number, since it uses less digits than its factorization.

18622403485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344172.

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

The spelling of 18622403485 in words is "eighteen billion, six hundred twenty-two million, four hundred three thousand, four hundred eighty-five".