3778109568 has 224 divisors, whose sum is σ = 11884407600. Its totient is φ = 1192527360.

The previous prime is 3778109567. The next prime is 3778109591. The reversal of 3778109568 is 8659018773.

3778109568 is a `hidden beast` number, since 3 + 7 + 78 + 1 + 0 + 9 + 568 = 666.

It is a super-2 number, since 2×3778109568² = 28548223815626293248, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (3778109567) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1771863 + ... + 1773993.

Almost surely, 2^3778109568 is an apocalyptic number.

3778109568 is a gapful number since it is divisible by the number (38) 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 3778109568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5942203800).

3778109568 is an abundant number, since it is smaller than the sum of its proper divisors (8106298032).

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

3778109568 is an equidigital number, since it uses as much as digits as its factorization.

3778109568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182 (or 2155 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The square root of 3778109568 is about 61466.3287337059. The cubic root of 3778109568 is about 1557.4885032048.

The spelling of 3778109568 in words is "three billion, seven hundred seventy-eight million, one hundred nine thousand, five hundred sixty-eight".