3886818722 has 4 divisors (see below), whose sum is σ = 5830228086. Its totient is φ = 1943409360.

The previous prime is 3886818721. The next prime is 3886818743. The reversal of 3886818722 is 2278186883.

3886818722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 3030612601 + 856206121 = 55051^2 + 29261^2 .

It is not an unprimeable number, because it can be changed into a prime (3886818721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971704679 + ... + 971704682.

Almost surely, 2^3886818722 is an apocalyptic number.

3886818722 is a deficient number, since it is larger than the sum of its proper divisors (1943409364).

3886818722 is a wasteful number, since it uses less digits than its factorization.

3886818722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943409363.

The product of its digits is 2064384, while the sum is 53.

The square root of 3886818722 is about 62344.3559755011. The cubic root of 3886818722 is about 1572.2855701808.

The spelling of 3886818722 in words is "three billion, eight hundred eighty-six million, eight hundred eighteen thousand, seven hundred twenty-two".