3879167781 has 16 divisors (see below), whose sum is σ = 5190732288. Its totient is φ = 2576876400.

The previous prime is 3879167771. The next prime is 3879167791. The reversal of 3879167781 is 1877619783.

It is an interprime number because it is at equal distance from previous prime (3879167771) and next prime (3879167791).

It is not a de Polignac number, because 3879167781 - 2⁵ = 3879167749 is a prime.

It is a super-2 number, since 2×3879167781² = 30095885346296927922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3879167711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1109446 + ... + 1112936.

It is an arithmetic number, because the mean of its divisors is an integer number (324420768).

Almost surely, 2^3879167781 is an apocalyptic number.

It is an amenable number.

3879167781 is a deficient number, since it is larger than the sum of its proper divisors (1311564507).

3879167781 is a wasteful number, since it uses less digits than its factorization.

3879167781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712.

The product of its digits is 3556224, while the sum is 57.

The square root of 3879167781 is about 62282.9654159145. The cubic root of 3879167781 is about 1571.2532464306.

The spelling of 3879167781 in words is "three billion, eight hundred seventy-nine million, one hundred sixty-seven thousand, seven hundred eighty-one".