4138868786 has 32 divisors (see below), whose sum is σ = 6882140160. Its totient is φ = 1854812736.

The previous prime is 4138868753. The next prime is 4138868801. The reversal of 4138868786 is 6878688314.

It is a super-2 number, since 2×4138868786² = 34260469655450227592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141860 + ... + 168528.

It is an arithmetic number, because the mean of its divisors is an integer number (215066880).

Almost surely, 2^4138868786 is an apocalyptic number.

4138868786 is a deficient number, since it is larger than the sum of its proper divisors (2743271374).

4138868786 is a wasteful number, since it uses less digits than its factorization.

4138868786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26858.

The product of its digits is 12386304, while the sum is 59.

The square root of 4138868786 is about 64334.0406472343. The cubic root of 4138868786 is about 1605.5625123021.

The spelling of 4138868786 in words is "four billion, one hundred thirty-eight million, eight hundred sixty-eight thousand, seven hundred eighty-six".