613646614221622 has 4 divisors (see below), whose sum is σ = 920469921332436. Its totient is φ = 306823307110810.

The previous prime is 613646614221587. The next prime is 613646614221623. The reversal of 613646614221622 is 226122416646316.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×613646614221622⁴ (a number of 60 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 613646614221622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613646614221623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153411653555404 + ... + 153411653555407.

It is an arithmetic number, because the mean of its divisors is an integer number (230117480333109).

Almost surely, 2^{613646614221622} is an apocalyptic number.

613646614221622 is a deficient number, since it is larger than the sum of its proper divisors (306823307110814).

613646614221622 is a wasteful number, since it uses less digits than its factorization.

613646614221622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306823307110813.

The product of its digits is 5971968, while the sum is 52.

The spelling of 613646614221622 in words is "six hundred thirteen trillion, six hundred forty-six billion, six hundred fourteen million, two hundred twenty-one thousand, six hundred twenty-two".