683618218638 has 48 divisors (see below), whose sum is σ = 1417011379056. Its totient is φ = 219859198720.

The previous prime is 683618218573. The next prime is 683618218651. The reversal of 683618218638 is 836812816386.

683618218638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7183648 + ... + 7278188.

It is an arithmetic number, because the mean of its divisors is an integer number (29521070397).

Almost surely, 2^683618218638 is an apocalyptic number.

683618218638 is an abundant number, since it is smaller than the sum of its proper divisors (733393160418).

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

683618218638 is a wasteful number, since it uses less digits than its factorization.

683618218638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96037 (or 96008 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 60.

The spelling of 683618218638 in words is "six hundred eighty-three billion, six hundred eighteen million, two hundred eighteen thousand, six hundred thirty-eight".