684227143479 has 16 divisors (see below), whose sum is σ = 995393119104. Its totient is φ = 414619101600.

The previous prime is 684227143427. The next prime is 684227143489. The reversal of 684227143479 is 974341722486.

It is not a de Polignac number, because 684227143479 - 2¹¹ = 684227141431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684227143489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1382944 + ... + 1811349.

It is an arithmetic number, because the mean of its divisors is an integer number (62212069944).

Almost surely, 2^684227143479 is an apocalyptic number.

684227143479 is a deficient number, since it is larger than the sum of its proper divisors (311165975625).

684227143479 is a wasteful number, since it uses less digits than its factorization.

684227143479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3200798.

The product of its digits is 16257024, while the sum is 57.

The spelling of 684227143479 in words is "six hundred eighty-four billion, two hundred twenty-seven million, one hundred forty-three thousand, four hundred seventy-nine".