16868727315 has 48 divisors (see below), whose sum is σ = 32111445600. Its totient is φ = 8123850240.

The previous prime is 16868727301. The next prime is 16868727319. The reversal of 16868727315 is 51372786861.

It is a happy number.

It is not a de Polignac number, because 16868727315 - 2¹¹ = 16868725267 is a prime.

It is a super-2 number, since 2×16868727315² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16868727319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40602 + ... + 188111.

It is an arithmetic number, because the mean of its divisors is an integer number (668988450).

Almost surely, 2^16868727315 is an apocalyptic number.

16868727315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16868727315 is a deficient number, since it is larger than the sum of its proper divisors (15242718285).

16868727315 is a wasteful number, since it uses less digits than its factorization.

16868727315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228884 (or 228881 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 16868727315 in words is "sixteen billion, eight hundred sixty-eight million, seven hundred twenty-seven thousand, three hundred fifteen".