384700815850 has 48 divisors (see below), whose sum is σ = 781438734720. Its totient is φ = 140042750400.

The previous prime is 384700815841. The next prime is 384700815901. The reversal of 384700815850 is 58518007483.

It is a super-2 number, since 2×384700815850² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 384700815794 and 384700815803.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4121790 + ... + 4214089.

It is an arithmetic number, because the mean of its divisors is an integer number (16279973640).

Almost surely, 2^384700815850 is an apocalyptic number.

384700815850 is an abundant number, since it is smaller than the sum of its proper divisors (396737918870).

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

384700815850 is a wasteful number, since it uses less digits than its factorization.

384700815850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8335975 (or 8335970 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 49.

The spelling of 384700815850 in words is "three hundred eighty-four billion, seven hundred million, eight hundred fifteen thousand, eight hundred fifty".