3778538736 has 40 divisors (see below), whose sum is σ = 11155686784. Its totient is φ = 1079582400.

The previous prime is 3778538723. The next prime is 3778538761. The reversal of 3778538736 is 6378358773.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5622490 + ... + 5623161.

Almost surely, 2^3778538736 is an apocalyptic number.

It is an amenable number.

3778538736 is an abundant number, since it is smaller than the sum of its proper divisors (7377148048).

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

3778538736 is a wasteful number, since it uses less digits than its factorization.

3778538736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11245669 (or 11245663 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 57.

The square root of 3778538736 is about 61469.8197166707. The cubic root of 3778538736 is about 1557.5474744007.

The spelling of 3778538736 in words is "three billion, seven hundred seventy-eight million, five hundred thirty-eight thousand, seven hundred thirty-six".