3778392366 has 128 divisors (see below), whose sum is σ = 9849600000. Its totient is φ = 1051315200.

The previous prime is 3778392361. The next prime is 3778392377. The reversal of 3778392366 is 6632938773.

3778392366 is a `hidden beast` number, since 377 + 8 + 39 + 236 + 6 = 666.

3778392366 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778392361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3024510 + ... + 3025758.

It is an arithmetic number, because the mean of its divisors is an integer number (76950000).

Almost surely, 2^3778392366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3778392366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4924800000).

3778392366 is an abundant number, since it is smaller than the sum of its proper divisors (6071207634).

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

3778392366 is a wasteful number, since it uses less digits than its factorization.

3778392366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1465 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 54.

The square root of 3778392366 is about 61468.6291208776. The cubic root of 3778392366 is about 1557.5273624665.

The spelling of 3778392366 in words is "three billion, seven hundred seventy-eight million, three hundred ninety-two thousand, three hundred sixty-six".