680134670069 has 4 divisors (see below), whose sum is σ = 694605620544. Its totient is φ = 665663719596.

The previous prime is 680134670051. The next prime is 680134670147. The reversal of 680134670069 is 960076431086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680134670069 is a prime.

It is a super-2 number, since 2×680134670069² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 680134669999 and 680134670026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680134670009) 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, 7235475167 + ... + 7235475260.

It is an arithmetic number, because the mean of its divisors is an integer number (173651405136).

Almost surely, 2^680134670069 is an apocalyptic number.

It is an amenable number.

680134670069 is a deficient number, since it is larger than the sum of its proper divisors (14470950475).

680134670069 is a wasteful number, since it uses less digits than its factorization.

680134670069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14470950474.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 680134670069 in words is "six hundred eighty billion, one hundred thirty-four million, six hundred seventy thousand, sixty-nine".