285641992366 has 4 divisors (see below), whose sum is σ = 428462988552. Its totient is φ = 142820996182.

The previous prime is 285641992351. The next prime is 285641992367. The reversal of 285641992366 is 663299146582.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285641992367) 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 as a sum of consecutive naturals, namely, 71410498090 + ... + 71410498093.

It is an arithmetic number, because the mean of its divisors is an integer number (107115747138).

Almost surely, 2^285641992366 is an apocalyptic number.

285641992366 is a deficient number, since it is larger than the sum of its proper divisors (142820996186).

285641992366 is a wasteful number, since it uses less digits than its factorization.

285641992366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142820996185.

The product of its digits is 33592320, while the sum is 61.

The spelling of 285641992366 in words is "two hundred eighty-five billion, six hundred forty-one million, nine hundred ninety-two thousand, three hundred sixty-six".