4138868766 has 32 divisors (see below), whose sum is σ = 8699188608. Its totient is φ = 1311115680.

The previous prime is 4138868753. The next prime is 4138868801. The reversal of 4138868766 is 6678688314.

It is a congruent number.

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, 207240 + ... + 226331.

It is an arithmetic number, because the mean of its divisors is an integer number (271849644).

Almost surely, 2^4138868766 is an apocalyptic number.

4138868766 is an abundant number, since it is smaller than the sum of its proper divisors (4560319842).

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

4138868766 is a wasteful number, since it uses less digits than its factorization.

4138868766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433656.

The product of its digits is 9289728, while the sum is 57.

The square root of 4138868766 is about 64334.0404917956. The cubic root of 4138868766 is about 1605.5625097160.

The spelling of 4138868766 in words is "four billion, one hundred thirty-eight million, eight hundred sixty-eight thousand, seven hundred sixty-six".