68514140263 has 4 divisors (see below), whose sum is σ = 68548519648. Its totient is φ = 68479760880.

The previous prime is 68514140251. The next prime is 68514140281. The reversal of 68514140263 is 36204141586.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68514140263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68514140243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17186703 + ... + 17190688.

It is an arithmetic number, because the mean of its divisors is an integer number (17137129912).

Almost surely, 2^68514140263 is an apocalyptic number.

68514140263 is a deficient number, since it is larger than the sum of its proper divisors (34379385).

68514140263 is a wasteful number, since it uses less digits than its factorization.

68514140263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34379384.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 68514140263 in words is "sixty-eight billion, five hundred fourteen million, one hundred forty thousand, two hundred sixty-three".