215484360012 has 72 divisors (see below), whose sum is σ = 554190279552. Its totient is φ = 70578604800.

The previous prime is 215484359971. The next prime is 215484360019. The reversal of 215484360012 is 210063484512.

It is a happy number.

215484360012 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 8 + 43 + 600 + 1 + 2 = 666.

215484360012 is digitally balanced in base 3, 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 (36).

It is not an unprimeable number, because it can be changed into a prime (215484360019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2126728 + ... + 2225744.

It is an arithmetic number, because the mean of its divisors is an integer number (7697087216).

Almost surely, 2^215484360012 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 215484360012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277095139776).

215484360012 is an abundant number, since it is smaller than the sum of its proper divisors (338705919540).

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

215484360012 is a wasteful number, since it uses less digits than its factorization.

215484360012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100079 (or 100074 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 215484360012 in words is "two hundred fifteen billion, four hundred eighty-four million, three hundred sixty thousand, twelve".