68584268623 has 4 divisors (see below), whose sum is σ = 73859981608. Its totient is φ = 63308555640.

The previous prime is 68584268603. The next prime is 68584268633. The reversal of 68584268623 is 32686248586.

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 68584268623 - 2¹³ = 68584260431 is a prime.

It is a super-2 number, since 2×68584268623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68584268603) 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, 2637856473 + ... + 2637856498.

It is an arithmetic number, because the mean of its divisors is an integer number (18464995402).

Almost surely, 2^68584268623 is an apocalyptic number.

68584268623 is a deficient number, since it is larger than the sum of its proper divisors (5275712985).

68584268623 is a wasteful number, since it uses less digits than its factorization.

68584268623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275712984.

The product of its digits is 26542080, while the sum is 58.

The spelling of 68584268623 in words is "sixty-eight billion, five hundred eighty-four million, two hundred sixty-eight thousand, six hundred twenty-three".