3864981799 has 4 divisors (see below), whose sum is σ = 4417122064. Its totient is φ = 3312841536.

The previous prime is 3864981797. The next prime is 3864981817. The reversal of 3864981799 is 9971894683.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3864981799 - 2¹ = 3864981797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3864981799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3864981793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276070122 + ... + 276070135.

It is an arithmetic number, because the mean of its divisors is an integer number (1104280516).

Almost surely, 2^3864981799 is an apocalyptic number.

3864981799 is a deficient number, since it is larger than the sum of its proper divisors (552140265).

3864981799 is an equidigital number, since it uses as much as digits as its factorization.

3864981799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552140264.

The product of its digits is 23514624, while the sum is 64.

The square root of 3864981799 is about 62168.9777863526. The cubic root of 3864981799 is about 1569.3355673612.

The spelling of 3864981799 in words is "three billion, eight hundred sixty-four million, nine hundred eighty-one thousand, seven hundred ninety-nine".