679124144669 has 4 divisors (see below), whose sum is σ = 681942087420. Its totient is φ = 676306201920.

The previous prime is 679124144651. The next prime is 679124144687. The reversal of 679124144669 is 966441421976.

679124144669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (679124144651) and next prime (679124144687).

It can be written as a sum of positive squares in 2 ways, for example, as 347622264025 + 331501880644 = 589595^2 + 575762^2 .

It is a cyclic number.

It is not a de Polignac number, because 679124144669 - 2¹⁶ = 679124079133 is a prime.

It is a super-2 number, since 2×679124144669² (a number of 24 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 (679124144269) 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, 1408971014 + ... + 1408971495.

It is an arithmetic number, because the mean of its divisors is an integer number (170485521855).

Almost surely, 2^679124144669 is an apocalyptic number.

It is an amenable number.

679124144669 is a deficient number, since it is larger than the sum of its proper divisors (2817942751).

679124144669 is a wasteful number, since it uses less digits than its factorization.

679124144669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817942750.

The product of its digits is 15676416, while the sum is 59.

The spelling of 679124144669 in words is "six hundred seventy-nine billion, one hundred twenty-four million, one hundred forty-four thousand, six hundred sixty-nine".