386855693840 has 240 divisors, whose sum is σ = 1148023575360. Its totient is φ = 119879101440.

The previous prime is 386855693839. The next prime is 386855693857. The reversal of 386855693840 is 48396558683.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7433831 + ... + 7485689.

It is an arithmetic number, because the mean of its divisors is an integer number (4783431564).

Almost surely, 2^386855693840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386855693840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574011787680).

386855693840 is an abundant number, since it is smaller than the sum of its proper divisors (761167881520).

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

386855693840 is a wasteful number, since it uses less digits than its factorization.

386855693840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52070 (or 52057 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 65.

The spelling of 386855693840 in words is "three hundred eighty-six billion, eight hundred fifty-five million, six hundred ninety-three thousand, eight hundred forty".