3878244291 has 16 divisors (see below), whose sum is σ = 5399064576. Its totient is φ = 2471595456.

The previous prime is 3878244283. The next prime is 3878244353. The reversal of 3878244291 is 1924428783.

It is not a de Polignac number, because 3878244291 - 2³ = 3878244283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3878244291.

It is not an unprimeable number, because it can be changed into a prime (3878240291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104926 + ... + 136988.

It is an arithmetic number, because the mean of its divisors is an integer number (337441536).

Almost surely, 2^3878244291 is an apocalyptic number.

3878244291 is a deficient number, since it is larger than the sum of its proper divisors (1520820285).

3878244291 is a wasteful number, since it uses less digits than its factorization.

3878244291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33842.

The product of its digits is 774144, while the sum is 48.

The square root of 3878244291 is about 62275.5513102855. The cubic root of 3878244291 is about 1571.1285502840.

The spelling of 3878244291 in words is "three billion, eight hundred seventy-eight million, two hundred forty-four thousand, two hundred ninety-one".