63906228612 has 96 divisors (see below), whose sum is σ = 168507964800. Its totient is φ = 20939299200.

The previous prime is 63906228583. The next prime is 63906228619. The reversal of 63906228612 is 21682260936.

63906228612 is a `hidden beast` number, since 6 + 3 + 9 + 0 + 6 + 2 + 28 + 612 = 666.

It is not an unprimeable number, because it can be changed into a prime (63906228619) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 18055939 + ... + 18059477.

It is an arithmetic number, because the mean of its divisors is an integer number (1755291300).

Almost surely, 2^63906228612 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 63906228612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84253982400).

63906228612 is an abundant number, since it is smaller than the sum of its proper divisors (104601736188).

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

63906228612 is a wasteful number, since it uses less digits than its factorization.

63906228612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6354 (or 6346 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 63906228612 in words is "sixty-three billion, nine hundred six million, two hundred twenty-eight thousand, six hundred twelve".