2608623617 has 8 divisors (see below), whose sum is σ = 2686323816. Its totient is φ = 2531302272.

The previous prime is 2608623583. The next prime is 2608623671. The reversal of 2608623617 is 7163268062.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1250258881 + 1358364736 = 35359^2 + 36856^2 .

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 2608623617 - 2¹⁰ = 2608622593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2608623917) 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, 80708 + ... + 108309.

It is an arithmetic number, because the mean of its divisors is an integer number (335790477).

Almost surely, 2^2608623617 is an apocalyptic number.

It is an amenable number.

2608623617 is a deficient number, since it is larger than the sum of its proper divisors (77700199).

2608623617 is a wasteful number, since it uses less digits than its factorization.

2608623617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189427.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 2608623617 is about 51074.6866559160. The cubic root of 2608623617 is about 1376.5874544048.

The spelling of 2608623617 in words is "two billion, six hundred eight million, six hundred twenty-three thousand, six hundred seventeen".