3643051608 has 144 divisors (see below), whose sum is σ = 11537370000. Its totient is φ = 1035441792.

The previous prime is 3643051603. The next prime is 3643051613. The reversal of 3643051608 is 8061503463.

3643051608 is a `hidden beast` number, since 3 + 6 + 43 + 0 + 5 + 1 + 608 = 666.

It is an interprime number because it is at equal distance from previous prime (3643051603) and next prime (3643051613).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643051603) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 699478 + ... + 704666.

It is an arithmetic number, because the mean of its divisors is an integer number (80120625).

Almost surely, 2^3643051608 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 3643051608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5768685000).

3643051608 is an abundant number, since it is smaller than the sum of its proper divisors (7894318392).

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

3643051608 is a wasteful number, since it uses less digits than its factorization.

3643051608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414 (or 5400 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 3643051608 is about 60357.6971727716. The cubic root of 3643051608 is about 1538.7040888591.

The spelling of 3643051608 in words is "three billion, six hundred forty-three million, fifty-one thousand, six hundred eight".