683661078244 has 27 divisors (see below), whose sum is σ = 1200993893001. Its totient is φ = 340524961920.

The previous prime is 683661078229. The next prime is 683661078253. The reversal of 683661078244 is 442870166386.

It is a happy number.

The square root of 683661078244 is 826838.

It is a perfect power (a square), and thus also a powerful number.

683661078244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 279775407844 + 403885670400 = 528938^2 + 635520^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 547366132 + ... + 547367380.

Almost surely, 2^683661078244 is an apocalyptic number.

683661078244 is the 826838-th square number.

It is an amenable number.

683661078244 is a deficient number, since it is larger than the sum of its proper divisors (517332814757).

683661078244 is an frugal number, since it uses more digits than its factorization.

683661078244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 683661078244 in words is "six hundred eighty-three billion, six hundred sixty-one million, seventy-eight thousand, two hundred forty-four".