386621915136 has 120 divisors (see below), whose sum is σ = 1032191956320. Its totient is φ = 128720044032.

The previous prime is 386621915117. The next prime is 386621915179. The reversal of 386621915136 is 631519126683.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45657975 + ... + 45666441.

It is an arithmetic number, because the mean of its divisors is an integer number (8601599636).

Almost surely, 2^386621915136 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 386621915136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516095978160).

386621915136 is an abundant number, since it is smaller than the sum of its proper divisors (645570041184).

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

386621915136 is an frugal number, since it uses more digits than its factorization.

386621915136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427 (or 9401 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The spelling of 386621915136 in words is "three hundred eighty-six billion, six hundred twenty-one million, nine hundred fifteen thousand, one hundred thirty-six".