285646977932 has 12 divisors (see below), whose sum is σ = 499999777536. Its totient is φ = 142789898640.

The previous prime is 285646977907. The next prime is 285646977947. The reversal of 285646977932 is 239779646582.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8378444 + ... + 8412467.

It is an arithmetic number, because the mean of its divisors is an integer number (41666648128).

Almost surely, 2^285646977932 is an apocalyptic number.

It is an amenable number.

285646977932 is a deficient number, since it is larger than the sum of its proper divisors (214352799604).

285646977932 is a wasteful number, since it uses less digits than its factorization.

285646977932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16795168 (or 16795166 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 68.

The spelling of 285646977932 in words is "two hundred eighty-five billion, six hundred forty-six million, nine hundred seventy-seven thousand, nine hundred thirty-two".