3642215021208 has 192 divisors, whose sum is σ = 11201745765600. Its totient is φ = 1062090731520.

The previous prime is 3642215021197. The next prime is 3642215021213. The reversal of 3642215021208 is 8021205122463.

3642215021208 is a `hidden beast` number, since 3 + 6 + 4 + 2 + 21 + 502 + 120 + 8 = 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 (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244923 + ... + 2710058.

Almost surely, 2^{3642215021208} is an apocalyptic number.

3642215021208 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3642215021208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5600872882800).

3642215021208 is an abundant number, since it is smaller than the sum of its proper divisors (7559530744392).

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

3642215021208 is a wasteful number, since it uses less digits than its factorization.

3642215021208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955082 (or 2955075 counting only the distinct ones).

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

The spelling of 3642215021208 in words is "three trillion, six hundred forty-two billion, two hundred fifteen million, twenty-one thousand, two hundred eight".