68695840162 has 4 divisors (see below), whose sum is σ = 103043760246. Its totient is φ = 34347920080.

The previous prime is 68695840159. The next prime is 68695840193. The reversal of 68695840162 is 26104859686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26104859686 = 2 ⋅13052429843.

It can be written as a sum of positive squares in only one way, i.e., 42012290961 + 26683549201 = 204969^2 + 163351^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17173960039 + ... + 17173960042.

Almost surely, 2^68695840162 is an apocalyptic number.

68695840162 is a deficient number, since it is larger than the sum of its proper divisors (34347920084).

68695840162 is a wasteful number, since it uses less digits than its factorization.

68695840162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34347920083.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 68695840162 in words is "sixty-eight billion, six hundred ninety-five million, eight hundred forty thousand, one hundred sixty-two".