3864981798 has 32 divisors (see below), whose sum is σ = 8591378400. Its totient is φ = 1287947808.

The previous prime is 3864981797. The next prime is 3864981817. The reversal of 3864981798 is 8971894683.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221248 + ... + 238076.

It is an arithmetic number, because the mean of its divisors is an integer number (268480575).

Almost surely, 2^3864981798 is an apocalyptic number.

3864981798 is an abundant number, since it is smaller than the sum of its proper divisors (4726396602).

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

3864981798 is a wasteful number, since it uses less digits than its factorization.

3864981798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21093 (or 21087 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The square root of 3864981798 is about 62168.9777783100. The cubic root of 3864981798 is about 1569.3355672259.

The spelling of 3864981798 in words is "three billion, eight hundred sixty-four million, nine hundred eighty-one thousand, seven hundred ninety-eight".