68258305469 has 4 divisors (see below), whose sum is σ = 68259442044. Its totient is φ = 68257168896.

The previous prime is 68258305447. The next prime is 68258305483. The reversal of 68258305469 is 96450385286.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50144644900 + 18113660569 = 223930^2 + 134587^2 .

It is a cyclic number.

It is not a de Polignac number, because 68258305469 - 2²⁴ = 68241528253 is a prime.

It is a super-2 number, since 2×68258305469² (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 (68258305369) 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, 472862 + ... + 600095.

It is an arithmetic number, because the mean of its divisors is an integer number (17064860511).

Almost surely, 2^68258305469 is an apocalyptic number.

It is an amenable number.

68258305469 is a deficient number, since it is larger than the sum of its proper divisors (1136575).

68258305469 is a wasteful number, since it uses less digits than its factorization.

68258305469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136574.

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 68258305469 in words is "sixty-eight billion, two hundred fifty-eight million, three hundred five thousand, four hundred sixty-nine".