3618015820 has 48 divisors (see below), whose sum is σ = 8215966080. Its totient is φ = 1333090304.

The previous prime is 3618015809. The next prime is 3618015827. The reversal of 3618015820 is 285108163.

3618015820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (3618015827) 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, 97225 + ... + 129184.

It is an arithmetic number, because the mean of its divisors is an integer number (171165960).

Almost surely, 2^3618015820 is an apocalyptic number.

It is an amenable number.

3618015820 is an abundant number, since it is smaller than the sum of its proper divisors (4597950260).

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

3618015820 is a wasteful number, since it uses less digits than its factorization.

3618015820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226482 (or 226480 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 3618015820 is about 60149.9444721273. The cubic root of 3618015820 is about 1535.1712216209.

The spelling of 3618015820 in words is "three billion, six hundred eighteen million, fifteen thousand, eight hundred twenty".