285674393944 has 32 divisors (see below), whose sum is σ = 542712204720. Its totient is φ = 140955071616.

The previous prime is 285674393941. The next prime is 285674393947. The reversal of 285674393944 is 449393476582.

It is an interprime number because it is at equal distance from previous prime (285674393941) and next prime (285674393947).

It is a super-3 number, since 3×285674393944³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285674393941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337042 + ... + 827614.

Almost surely, 2^285674393944 is an apocalyptic number.

It is an amenable number.

285674393944 is a deficient number, since it is larger than the sum of its proper divisors (257037810776).

285674393944 is a wasteful number, since it uses less digits than its factorization.

285674393944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491539 (or 491535 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 64.

The spelling of 285674393944 in words is "two hundred eighty-five billion, six hundred seventy-four million, three hundred ninety-three thousand, nine hundred forty-four".