616754408617 has 8 divisors (see below), whose sum is σ = 629399104200. Its totient is φ = 604223118720.

The previous prime is 616754408597. The next prime is 616754408657. The reversal of 616754408617 is 716804457616.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15975948816 + 600778459801 = 126396^2 + 775099^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616754408617 is a prime.

It is a super-3 number, since 3×616754408617³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616754408657) 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, 28340434 + ... + 28362187.

It is an arithmetic number, because the mean of its divisors is an integer number (78674888025).

Almost surely, 2^616754408617 is an apocalyptic number.

It is an amenable number.

616754408617 is a deficient number, since it is larger than the sum of its proper divisors (12644695583).

616754408617 is a wasteful number, since it uses less digits than its factorization.

616754408617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56702843.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 616754408617 in words is "six hundred sixteen billion, seven hundred fifty-four million, four hundred eight thousand, six hundred seventeen".