3621773568 has 288 divisors, whose sum is σ = 12178446336. Its totient is φ = 931037184.

The previous prime is 3621773567. The next prime is 3621773609. The reversal of 3621773568 is 8653771263.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (3621773563) 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, 2101155 + ... + 2102877.

It is an arithmetic number, because the mean of its divisors is an integer number (42286272).

Almost surely, 2^3621773568 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 3621773568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6089223168).

3621773568 is an abundant number, since it is smaller than the sum of its proper divisors (8556672768).

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

3621773568 is a wasteful number, since it uses less digits than its factorization.

3621773568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789 (or 1775 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 3621773568 is about 60181.1728699267. The cubic root of 3621773568 is about 1535.7025248574.

The spelling of 3621773568 in words is "three billion, six hundred twenty-one million, seven hundred seventy-three thousand, five hundred sixty-eight".