18272536622 has 16 divisors (see below), whose sum is σ = 28806261120. Its totient is φ = 8676165432.

The previous prime is 18272536591. The next prime is 18272536631. The reversal of 18272536622 is 22663527281.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422488 + ... + 1435275.

It is an arithmetic number, because the mean of its divisors is an integer number (1800391320).

Almost surely, 2^18272536622 is an apocalyptic number.

18272536622 is a deficient number, since it is larger than the sum of its proper divisors (10533724498).

18272536622 is a wasteful number, since it uses less digits than its factorization.

18272536622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857927.

The product of its digits is 483840, while the sum is 44.

The spelling of 18272536622 in words is "eighteen billion, two hundred seventy-two million, five hundred thirty-six thousand, six hundred twenty-two".