683221683490 has 16 divisors (see below), whose sum is σ = 1238646507840. Its totient is φ = 271322567280.

The previous prime is 683221683383. The next prime is 683221683491. The reversal of 683221683490 is 94386122386.

683221683490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (683221683491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245761806 + ... + 245764585.

It is an arithmetic number, because the mean of its divisors is an integer number (77415406740).

Almost surely, 2^683221683490 is an apocalyptic number.

683221683490 is a deficient number, since it is larger than the sum of its proper divisors (555424824350).

683221683490 is a wasteful number, since it uses less digits than its factorization.

683221683490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491526537.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 683221683490 in words is "six hundred eighty-three billion, two hundred twenty-one million, six hundred eighty-three thousand, four hundred ninety".