613612404503 has 4 divisors (see below), whose sum is σ = 701271319440. Its totient is φ = 525953489568.

The previous prime is 613612404497. The next prime is 613612404529. The reversal of 613612404503 is 305404216316.

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 613612404503 - 2¹² = 613612400407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613612404553) 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, 43829457458 + ... + 43829457471.

It is an arithmetic number, because the mean of its divisors is an integer number (175317829860).

Almost surely, 2^613612404503 is an apocalyptic number.

613612404503 is a deficient number, since it is larger than the sum of its proper divisors (87658914937).

613612404503 is an equidigital number, since it uses as much as digits as its factorization.

613612404503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87658914936.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 613612404503 in words is "six hundred thirteen billion, six hundred twelve million, four hundred four thousand, five hundred three".