285136776324 has 27 divisors (see below), whose sum is σ = 720770505637. Its totient is φ = 95044524144.

The previous prime is 285136776317. The next prime is 285136776359. The reversal of 285136776324 is 423677631582.

It is a happy number.

The square root of 285136776324 is 533982.

It is a perfect power (a square), and thus also a powerful number.

285136776324 is a `hidden beast` number, since 2 + 8 + 513 + 67 + 7 + 63 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 219276792900 + 65859983424 = 468270^2 + 256632^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3159394 + ... + 3248390.

Almost surely, 2^285136776324 is an apocalyptic number.

285136776324 is the 533982-nd square number.

It is an amenable number.

285136776324 is an abundant number, since it is smaller than the sum of its proper divisors (435633729313).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285136776324 is an frugal number, since it uses more digits than its factorization.

285136776324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178004 (or 89002 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 54.

The spelling of 285136776324 in words is "two hundred eighty-five billion, one hundred thirty-six million, seven hundred seventy-six thousand, three hundred twenty-four".