3878417766 has 16 divisors (see below), whose sum is σ = 7937227584. Its totient is φ = 1262740584.

The previous prime is 3878417749. The next prime is 3878417789. The reversal of 3878417766 is 6677148783.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7516056 + ... + 7516571.

It is an arithmetic number, because the mean of its divisors is an integer number (496076724).

Almost surely, 2^3878417766 is an apocalyptic number.

3878417766 is an abundant number, since it is smaller than the sum of its proper divisors (4058809818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3878417766 is a wasteful number, since it uses less digits than its factorization.

3878417766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15032675.

The product of its digits is 9483264, while the sum is 57.

The square root of 3878417766 is about 62276.9440965114. The cubic root of 3878417766 is about 1571.1519756144.

The spelling of 3878417766 in words is "three billion, eight hundred seventy-eight million, four hundred seventeen thousand, seven hundred sixty-six".