3781380278 has 16 divisors (see below), whose sum is σ = 6467700960. Its totient is φ = 1642590336.

The previous prime is 3781380277. The next prime is 3781380287. The reversal of 3781380278 is 8720831873.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781380277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4277138 + ... + 4278021.

It is an arithmetic number, because the mean of its divisors is an integer number (404231310).

Almost surely, 2^3781380278 is an apocalyptic number.

3781380278 is a deficient number, since it is larger than the sum of its proper divisors (2686320682).

3781380278 is a wasteful number, since it uses less digits than its factorization.

3781380278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8555191.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 3781380278 is about 61492.9286828982. The cubic root of 3781380278 is about 1557.9378129149.

The spelling of 3781380278 in words is "three billion, seven hundred eighty-one million, three hundred eighty thousand, two hundred seventy-eight".