616728388895 has 8 divisors (see below), whose sum is σ = 760076068704. Its totient is φ = 480048043104.

The previous prime is 616728388879. The next prime is 616728388897. The reversal of 616728388895 is 598883827616.

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 616728388895 - 2⁴ = 616728388879 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 (616728388897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666833299 + ... + 1666833668.

It is an arithmetic number, because the mean of its divisors is an integer number (95009508588).

Almost surely, 2^616728388895 is an apocalyptic number.

616728388895 is a deficient number, since it is larger than the sum of its proper divisors (143347679809).

616728388895 is a wasteful number, since it uses less digits than its factorization.

616728388895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333667009.

The product of its digits is 278691840, while the sum is 71.

The spelling of 616728388895 in words is "six hundred sixteen billion, seven hundred twenty-eight million, three hundred eighty-eight thousand, eight hundred ninety-five".