613367779684 has 81 divisors (see below), whose sum is σ = 1195391802969. Its totient is φ = 275177422080.

The previous prime is 613367779681. The next prime is 613367779711. The reversal of 613367779684 is 486977763316.

The square root of 613367779684 is 783178.

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

It can be written as a sum of positive squares in only one way, i.e., 275425536100 + 337942243584 = 524810^2 + 581328^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613367779681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1671301669 + ... + 1671302035.

Almost surely, 2^613367779684 is an apocalyptic number.

613367779684 is the 783178-th square number.

It is an amenable number.

613367779684 is a deficient number, since it is larger than the sum of its proper divisors (582024023285).

613367779684 is an equidigital number, since it uses as much as digits as its factorization.

613367779684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 477 counting only the distinct ones).

The product of its digits is 192036096, while the sum is 67.

The spelling of 613367779684 in words is "six hundred thirteen billion, three hundred sixty-seven million, seven hundred seventy-nine thousand, six hundred eighty-four".