3818562012 has 72 divisors (see below), whose sum is σ = 10289260800. Its totient is φ = 1190580768.

The previous prime is 3818561987. The next prime is 3818562079. The reversal of 3818562012 is 2102658183.

It is a happy number.

3818562012 is a `hidden beast` number, since 3 + 8 + 18 + 5 + 620 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18703 + ... + 89369.

It is an arithmetic number, because the mean of its divisors is an integer number (142906400).

Almost surely, 2^3818562012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3818562012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5144630400).

3818562012 is an abundant number, since it is smaller than the sum of its proper divisors (6470698788).

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

3818562012 is a wasteful number, since it uses less digits than its factorization.

3818562012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70775 (or 70770 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 3818562012 is about 61794.5144167344. The cubic root of 3818562012 is about 1563.0274886087.

The spelling of 3818562012 in words is "three billion, eight hundred eighteen million, five hundred sixty-two thousand, twelve".