3878430377 has 2 divisors, whose sum is σ = 3878430378. Its totient is φ = 3878430376.

The previous prime is 3878430373. The next prime is 3878430379. The reversal of 3878430377 is 7730348783.

3878430377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3494701456 + 383728921 = 59116^2 + 19589^2 .

It is a cyclic number.

It is not a de Polignac number, because 3878430377 - 2² = 3878430373 is a prime.

Together with 3878430379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3878430373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939215188 + 1939215189.

It is an arithmetic number, because the mean of its divisors is an integer number (1939215189).

Almost surely, 2^3878430377 is an apocalyptic number.

It is an amenable number.

3878430377 is a deficient number, since it is larger than the sum of its proper divisors (1).

3878430377 is an equidigital number, since it uses as much as digits as its factorization.

3878430377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 50.

The square root of 3878430377 is about 62277.0453457773. The cubic root of 3878430377 is about 1571.1536785233.

The spelling of 3878430377 in words is "three billion, eight hundred seventy-eight million, four hundred thirty thousand, three hundred seventy-seven".