3878463145 has 8 divisors (see below), whose sum is σ = 4657282056. Its totient is φ = 3100686336.

The previous prime is 3878463139. The next prime is 3878463163. The reversal of 3878463145 is 5413648783.

It can be written as a sum of positive squares in 4 ways, for example, as 300987801 + 3577475344 = 17349^2 + 59812^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3878463145 - 2¹⁵ = 3878430377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252312 + ... + 267241.

It is an arithmetic number, because the mean of its divisors is an integer number (582160257).

Almost surely, 2^3878463145 is an apocalyptic number.

It is an amenable number.

3878463145 is a deficient number, since it is larger than the sum of its proper divisors (778818911).

3878463145 is a wasteful number, since it uses less digits than its factorization.

3878463145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521051.

The product of its digits is 1935360, while the sum is 49.

The square root of 3878463145 is about 62277.3084277090. The cubic root of 3878463145 is about 1571.1581032874.

The spelling of 3878463145 in words is "three billion, eight hundred seventy-eight million, four hundred sixty-three thousand, one hundred forty-five".