613406067940 has 12 divisors (see below), whose sum is σ = 1288152742716. Its totient is φ = 245362427168.

The previous prime is 613406067917. The next prime is 613406067941. The reversal of 613406067940 is 49760604316.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 474588721216 + 138817346724 = 688904^2 + 372582^2 .

It is a super-2 number, since 2×613406067940² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (613406067941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15335151679 + ... + 15335151718.

It is an arithmetic number, because the mean of its divisors is an integer number (107346061893).

Almost surely, 2^613406067940 is an apocalyptic number.

It is an amenable number.

613406067940 is an abundant number, since it is smaller than the sum of its proper divisors (674746674776).

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

613406067940 is a wasteful number, since it uses less digits than its factorization.

613406067940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30670303406 (or 30670303404 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 613406067940 in words is "six hundred thirteen billion, four hundred six million, sixty-seven thousand, nine hundred forty".