385691816028 has 48 divisors (see below), whose sum is σ = 970864665120. Its totient is φ = 118718306304.

The previous prime is 385691815981. The next prime is 385691816051. The reversal of 385691816028 is 820618196583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17825473 + ... + 17847096.

It is an arithmetic number, because the mean of its divisors is an integer number (20226347190).

Almost surely, 2^385691816028 is an apocalyptic number.

It is an amenable number.

385691816028 is an abundant number, since it is smaller than the sum of its proper divisors (585172849092).

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

385691816028 is a wasteful number, since it uses less digits than its factorization.

385691816028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35672646 (or 35672644 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 385691816028 in words is "three hundred eighty-five billion, six hundred ninety-one million, eight hundred sixteen thousand, twenty-eight".