268117065819 has 32 divisors (see below), whose sum is σ = 420621215040. Its totient is φ = 168212146176.

The previous prime is 268117065809. The next prime is 268117065833. The reversal of 268117065819 is 918560711862.

It is a happy number.

268117065819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 268117065819 - 2¹⁹ = 268116541531 is a prime.

It is a super-2 number, since 2×268117065819² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268117065809) 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 31 ways as a sum of consecutive naturals, for example, 5148399 + ... + 5200215.

It is an arithmetic number, because the mean of its divisors is an integer number (13144412970).

Almost surely, 2^268117065819 is an apocalyptic number.

268117065819 is a deficient number, since it is larger than the sum of its proper divisors (152504149221).

268117065819 is a wasteful number, since it uses less digits than its factorization.

268117065819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63116 (or 63110 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 268117065819 in words is "two hundred sixty-eight billion, one hundred seventeen million, sixty-five thousand, eight hundred nineteen".