4381777085 has 32 divisors (see below), whose sum is σ = 6091787520. Its totient is φ = 2963524608.

The previous prime is 4381777079. The next prime is 4381777111. The reversal of 4381777085 is 5807771834.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4381777085 - 2⁶ = 4381777021 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2942021 + ... + 2943509.

It is an arithmetic number, because the mean of its divisors is an integer number (190368360).

Almost surely, 2^4381777085 is an apocalyptic number.

It is an amenable number.

4381777085 is a deficient number, since it is larger than the sum of its proper divisors (1710010435).

4381777085 is a wasteful number, since it uses less digits than its factorization.

4381777085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597.

The product of its (nonzero) digits is 1317120, while the sum is 50.

The square root of 4381777085 is about 66194.9928997655. The cubic root of 4381777085 is about 1636.3772258631.

The spelling of 4381777085 in words is "four billion, three hundred eighty-one million, seven hundred seventy-seven thousand, eighty-five".