613364778 has 32 divisors (see below), whose sum is σ = 1467883200. Its totient is φ = 188727408.

The previous prime is 613364749. The next prime is 613364789. The reversal of 613364778 is 877463316.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436168 + ... + 437571.

It is an arithmetic number, because the mean of its divisors is an integer number (45871350).

Almost surely, 2^613364778 is an apocalyptic number.

613364778 is an abundant number, since it is smaller than the sum of its proper divisors (854518422).

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

613364778 is a wasteful number, since it uses less digits than its factorization.

613364778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873763 (or 873757 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 613364778 is about 24766.2023330183. The cubic root of 613364778 is about 849.6491183818.

The spelling of 613364778 in words is "six hundred thirteen million, three hundred sixty-four thousand, seven hundred seventy-eight".