385682638268 has 24 divisors (see below), whose sum is σ = 696803917824. Its totient is φ = 186597356400.

The previous prime is 385682638259. The next prime is 385682638279. The reversal of 385682638268 is 862836286583.

It is a super-2 number, since 2×385682638268² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825821 + ... + 1205547.

It is an arithmetic number, because the mean of its divisors is an integer number (29033496576).

Almost surely, 2^385682638268 is an apocalyptic number.

It is an amenable number.

385682638268 is a deficient number, since it is larger than the sum of its proper divisors (311121279556).

385682638268 is a wasteful number, since it uses less digits than its factorization.

385682638268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387953 (or 387951 counting only the distinct ones).

The product of its digits is 159252480, while the sum is 65.

The spelling of 385682638268 in words is "three hundred eighty-five billion, six hundred eighty-two million, six hundred thirty-eight thousand, two hundred sixty-eight".