618689622 has 16 divisors (see below), whose sum is σ = 1248944832. Its totient is φ = 204302280.

The previous prime is 618689597. The next prime is 618689677. The reversal of 618689622 is 226986816.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481204 + ... + 482487.

It is an arithmetic number, because the mean of its divisors is an integer number (78059052).

Almost surely, 2^618689622 is an apocalyptic number.

618689622 is an abundant number, since it is smaller than the sum of its proper divisors (630255210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618689622 is a wasteful number, since it uses less digits than its factorization.

618689622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963803.

The product of its digits is 497664, while the sum is 48.

The square root of 618689622 is about 24873.4722545928. The cubic root of 618689622 is about 852.1007424572.

The spelling of 618689622 in words is "six hundred eighteen million, six hundred eighty-nine thousand, six hundred twenty-two".