68375890259 has 4 divisors (see below), whose sum is σ = 68381654304. Its totient is φ = 68370126216.

The previous prime is 68375890241. The next prime is 68375890279. The reversal of 68375890259 is 95209857386.

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

It is a cyclic number.

It is not a de Polignac number, because 68375890259 - 2²⁰ = 68374841683 is a prime.

It is a super-2 number, since 2×68375890259² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68375890279) 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, 2864192 + ... + 2887965.

It is an arithmetic number, because the mean of its divisors is an integer number (17095413576).

Almost surely, 2^68375890259 is an apocalyptic number.

68375890259 is a deficient number, since it is larger than the sum of its proper divisors (5764045).

68375890259 is a wasteful number, since it uses less digits than its factorization.

68375890259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5764044.

The product of its (nonzero) digits is 32659200, while the sum is 62.

The spelling of 68375890259 in words is "sixty-eight billion, three hundred seventy-five million, eight hundred ninety thousand, two hundred fifty-nine".