683439503616 has 135 divisors (see below), whose sum is σ = 2038247970913. Its totient is φ = 227773486080.

The previous prime is 683439503609. The next prime is 683439503633. The reversal of 683439503616 is 616305934386.

The square root of 683439503616 is 826704.

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

683439503616 is a `hidden beast` number, since 6 + 83 + 43 + 9 + 503 + 6 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 341635574016 + 341803929600 = 584496^2 + 584640^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 119042506 + ... + 119048246.

Almost surely, 2^683439503616 is an apocalyptic number.

683439503616 is the 826704-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 683439503616

683439503616 is an abundant number, since it is smaller than the sum of its proper divisors (1354808467297).

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

683439503616 is an frugal number, since it uses more digits than its factorization.

683439503616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11510 (or 5746 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 683439503616 in words is "six hundred eighty-three billion, four hundred thirty-nine million, five hundred three thousand, six hundred sixteen".