3778814378 has 16 divisors (see below), whose sum is σ = 5871916800. Its totient is φ = 1821943200.

The previous prime is 3778814339. The next prime is 3778814387. The reversal of 3778814378 is 8734188773.

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, 91028 + ... + 125871.

It is an arithmetic number, because the mean of its divisors is an integer number (366994800).

Almost surely, 2^3778814378 is an apocalyptic number.

3778814378 is a deficient number, since it is larger than the sum of its proper divisors (2093102422).

3778814378 is a wasteful number, since it uses less digits than its factorization.

3778814378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217213.

The product of its digits is 6322176, while the sum is 56.

The square root of 3778814378 is about 61472.0617679284. The cubic root of 3778814378 is about 1557.5853475127.

The spelling of 3778814378 in words is "three billion, seven hundred seventy-eight million, eight hundred fourteen thousand, three hundred seventy-eight".