285779163464 has 16 divisors (see below), whose sum is σ = 545946044220. Its totient is φ = 140193551680.

The previous prime is 285779163431. The next prime is 285779163469. The reversal of 285779163464 is 464361977582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 285217947364 + 561216100 = 534058^2 + 23690^2 .

It is a junction number, because it is equal to n+sod(n) for n = 285779163397 and 285779163406.

It is not an unprimeable number, because it can be changed into a prime (285779163469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337003307 + ... + 337004154.

Almost surely, 2^285779163464 is an apocalyptic number.

It is an amenable number.

285779163464 is a deficient number, since it is larger than the sum of its proper divisors (260166880756).

285779163464 is a wasteful number, since it uses less digits than its factorization.

285779163464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674007520 (or 674007516 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 62.

The spelling of 285779163464 in words is "two hundred eighty-five billion, seven hundred seventy-nine million, one hundred sixty-three thousand, four hundred sixty-four".