2315718856617 has 8 divisors (see below), whose sum is σ = 3087787460160. Its totient is φ = 1543731412080.

The previous prime is 2315718856567. The next prime is 2315718856621. The reversal of 2315718856617 is 7166588175132.

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

It is not a de Polignac number, because 2315718856617 - 2¹² = 2315718852521 is a prime.

It is a super-3 number, since 3×2315718856617³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2315718856117) 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, 20223142 + ... + 20337327.

It is an arithmetic number, because the mean of its divisors is an integer number (385973432520).

Almost surely, 2^{2315718856617} is an apocalyptic number.

It is an amenable number.

2315718856617 is a deficient number, since it is larger than the sum of its proper divisors (772068603543).

2315718856617 is a wasteful number, since it uses less digits than its factorization.

2315718856617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40579503.

The product of its digits is 16934400, while the sum is 60.

The spelling of 2315718856617 in words is "two trillion, three hundred fifteen billion, seven hundred eighteen million, eight hundred fifty-six thousand, six hundred seventeen".