68473975963 has 16 divisors (see below), whose sum is σ = 74639365920. Its totient is φ = 62554415616.

The previous prime is 68473975961. The next prime is 68473975967. The reversal of 68473975963 is 36957937486.

It is a cyclic number.

It is not a de Polignac number, because 68473975963 - 2¹ = 68473975961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68473975961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133645 + ... + 393457.

It is an arithmetic number, because the mean of its divisors is an integer number (4664960370).

Almost surely, 2^68473975963 is an apocalyptic number.

68473975963 is a deficient number, since it is larger than the sum of its proper divisors (6165389957).

68473975963 is a wasteful number, since it uses less digits than its factorization.

68473975963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260286.

The product of its digits is 205752960, while the sum is 67.

The spelling of 68473975963 in words is "sixty-eight billion, four hundred seventy-three million, nine hundred seventy-five thousand, nine hundred sixty-three".