613605425431 has 4 divisors (see below), whose sum is σ = 633399148864. Its totient is φ = 593811702000.

The previous prime is 613605425383. The next prime is 613605425449. The reversal of 613605425431 is 134524506316.

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

It is a cyclic number.

It is not a de Polignac number, because 613605425431 - 2¹⁷ = 613605294359 is a prime.

It is a super-2 number, since 2×613605425431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613605425471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9896861670 + ... + 9896861731.

It is an arithmetic number, because the mean of its divisors is an integer number (158349787216).

Almost surely, 2^613605425431 is an apocalyptic number.

613605425431 is a deficient number, since it is larger than the sum of its proper divisors (19793723433).

613605425431 is a wasteful number, since it uses less digits than its factorization.

613605425431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19793723432.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 613605425431 in words is "six hundred thirteen billion, six hundred five million, four hundred twenty-five thousand, four hundred thirty-one".