613440552959 has 8 divisors (see below), whose sum is σ = 665062036800. Its totient is φ = 562452461856.

The previous prime is 613440552937. The next prime is 613440552961. The reversal of 613440552959 is 959255044316.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 613440552959 - 2²⁰ = 613439504383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 613440552959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613440552059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158346167 + ... + 158350040.

It is an arithmetic number, because the mean of its divisors is an integer number (83132754600).

Almost surely, 2^613440552959 is an apocalyptic number.

613440552959 is a deficient number, since it is larger than the sum of its proper divisors (51621483841).

613440552959 is a wasteful number, since it uses less digits than its factorization.

613440552959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316696369.

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 613440552959 in words is "six hundred thirteen billion, four hundred forty million, five hundred fifty-two thousand, nine hundred fifty-nine".