3685389378112 has 112 divisors (see below), whose sum is σ = 7991723960640. Its totient is φ = 1676009760768.

The previous prime is 3685389378091. The next prime is 3685389378149. The reversal of 3685389378112 is 2118739835863.

It is a Harshad number since it is a multiple of its sum of digits (64).

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, 26101818 + ... + 26242630.

It is an arithmetic number, because the mean of its divisors is an integer number (71354678220).

Almost surely, 2^{3685389378112} is an apocalyptic number.

3685389378112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3685389378112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3995861980320).

3685389378112 is an abundant number, since it is smaller than the sum of its proper divisors (4306334582528).

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

3685389378112 is a wasteful number, since it uses less digits than its factorization.

3685389378112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141300 (or 141290 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 64.

The spelling of 3685389378112 in words is "three trillion, six hundred eighty-five billion, three hundred eighty-nine million, three hundred seventy-eight thousand, one hundred twelve".