613791361242 has 24 divisors (see below), whose sum is σ = 1330099498260. Its totient is φ = 204563548800.

The previous prime is 613791361223. The next prime is 613791361273. The reversal of 613791361242 is 242163197316.

613791361242 is a `hidden beast` number, since 6 + 1 + 379 + 1 + 36 + 1 + 242 = 666.

613791361242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 554308541361 + 59482819881 = 744519^2 + 243891^2 .

It is a super-3 number, since 3×613791361242³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2684767 + ... + 2904402.

Almost surely, 2^613791361242 is an apocalyptic number.

613791361242 is an abundant number, since it is smaller than the sum of its proper divisors (716308137018).

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

613791361242 is a wasteful number, since it uses less digits than its factorization.

613791361242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595278 (or 5595275 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The spelling of 613791361242 in words is "six hundred thirteen billion, seven hundred ninety-one million, three hundred sixty-one thousand, two hundred forty-two".