3878751290 has 32 divisors (see below), whose sum is σ = 7156746576. Its totient is φ = 1512663040.

The previous prime is 3878751271. The next prime is 3878751299. The reversal of 3878751290 is 921578783.

It can be written as a sum of positive squares in 8 ways, for example, as 91948921 + 3786802369 = 9589^2 + 61537^2 .

It is not an unprimeable number, because it can be changed into a prime (3878751299) 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, 1077734 + ... + 1081326.

Almost surely, 2^3878751290 is an apocalyptic number.

3878751290 is a deficient number, since it is larger than the sum of its proper divisors (3277995286).

3878751290 is a wasteful number, since it uses less digits than its factorization.

3878751290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6274.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 3878751290 is about 62279.6217875478. The cubic root of 3878751290 is about 1571.1970113225.

The spelling of 3878751290 in words is "three billion, eight hundred seventy-eight million, seven hundred fifty-one thousand, two hundred ninety".