386786738772 has 144 divisors (see below), whose sum is σ = 1133298915840. Its totient is φ = 108940875264.

The previous prime is 386786738761. The next prime is 386786738827. The reversal of 386786738772 is 277837687683.

It is a self number, because there is not a number n which added to its sum of digits gives 386786738772.

It is a congruent number.

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, 12985048 + ... + 13014800.

It is an arithmetic number, because the mean of its divisors is an integer number (7870131360).

Almost surely, 2^386786738772 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 386786738772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566649457920).

386786738772 is an abundant number, since it is smaller than the sum of its proper divisors (746512177068).

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

386786738772 is a wasteful number, since it uses less digits than its factorization.

386786738772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30502 (or 30497 counting only the distinct ones).

The product of its digits is 796594176, while the sum is 72.

The spelling of 386786738772 in words is "three hundred eighty-six billion, seven hundred eighty-six million, seven hundred thirty-eight thousand, seven hundred seventy-two".