3878767801 has 4 divisors (see below), whose sum is σ = 3880659172. Its totient is φ = 3876876432.

The previous prime is 3878767799. The next prime is 3878767873. The reversal of 3878767801 is 1087678783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2870387776 + 1008380025 = 53576^2 + 31755^2 .

It is a cyclic number.

It is not a de Polignac number, because 3878767801 - 2¹ = 3878767799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3878767891) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 942606 + ... + 946711.

It is an arithmetic number, because the mean of its divisors is an integer number (970164793).

Almost surely, 2^3878767801 is an apocalyptic number.

It is an amenable number.

3878767801 is a deficient number, since it is larger than the sum of its proper divisors (1891371).

3878767801 is a wasteful number, since it uses less digits than its factorization.

3878767801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891370.

The product of its (nonzero) digits is 3161088, while the sum is 55.

The square root of 3878767801 is about 62279.7543428039. The cubic root of 3878767801 is about 1571.1992407339.

The spelling of 3878767801 in words is "three billion, eight hundred seventy-eight million, seven hundred sixty-seven thousand, eight hundred one".