613400727320 has 64 divisors (see below), whose sum is σ = 1440270720000. Its totient is φ = 234674121088.

The previous prime is 613400727311. The next prime is 613400727341. The reversal of 613400727320 is 23727004316.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20849981 + ... + 20879379.

It is an arithmetic number, because the mean of its divisors is an integer number (22504230000).

Almost surely, 2^613400727320 is an apocalyptic number.

It is an amenable number.

613400727320 is an abundant number, since it is smaller than the sum of its proper divisors (826869992680).

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

613400727320 is a wasteful number, since it uses less digits than its factorization.

613400727320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52112 (or 52108 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 613400727320 in words is "six hundred thirteen billion, four hundred million, seven hundred twenty-seven thousand, three hundred twenty".