68693889263 has 4 divisors (see below), whose sum is σ = 68695046688. Its totient is φ = 68692731840.

The previous prime is 68693889223. The next prime is 68693889347. The reversal of 68693889263 is 36298839686.

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 68693889263 - 2⁸ = 68693889007 is a prime.

It is a super-3 number, since 3×68693889263³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68693889193 and 68693889202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68693889223) 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, 484583 + ... + 610088.

It is an arithmetic number, because the mean of its divisors is an integer number (17173761672).

Almost surely, 2^68693889263 is an apocalyptic number.

68693889263 is a deficient number, since it is larger than the sum of its proper divisors (1157425).

68693889263 is a wasteful number, since it uses less digits than its factorization.

68693889263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157424.

The product of its digits is 161243136, while the sum is 68.

The spelling of 68693889263 in words is "sixty-eight billion, six hundred ninety-three million, eight hundred eighty-nine thousand, two hundred sixty-three".