4381345766 has 32 divisors (see below), whose sum is σ = 7715727360. Its totient is φ = 1826850816.

The previous prime is 4381345699. The next prime is 4381345789. The reversal of 4381345766 is 6675431834.

It is a super-2 number, since 2×4381345766² = 38392381442492253512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4381345766.

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, 140555 + ... + 168873.

It is an arithmetic number, because the mean of its divisors is an integer number (241116480).

Almost surely, 2^4381345766 is an apocalyptic number.

4381345766 is a deficient number, since it is larger than the sum of its proper divisors (3334381594).

4381345766 is a wasteful number, since it uses less digits than its factorization.

4381345766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28628.

The product of its digits is 1451520, while the sum is 47.

The square root of 4381345766 is about 66191.7348767956. The cubic root of 4381345766 is about 1636.3235319900.

The spelling of 4381345766 in words is "four billion, three hundred eighty-one million, three hundred forty-five thousand, seven hundred sixty-six".