3651428664 has 384 divisors, whose sum is σ = 11950848000. Its totient is φ = 996323328.

The previous prime is 3651428663. The next prime is 3651428719. The reversal of 3651428664 is 4668241563.

3651428664 is a `hidden beast` number, since 365 + 1 + 4 + 286 + 6 + 4 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3651428663) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32313472 + ... + 32313584.

It is an arithmetic number, because the mean of its divisors is an integer number (31122000).

Almost surely, 2^3651428664 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 3651428664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5975424000).

3651428664 is an abundant number, since it is smaller than the sum of its proper divisors (8299419336).

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

3651428664 is a wasteful number, since it uses less digits than its factorization.

3651428664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 252 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 3651428664 is about 60427.0524185981. The cubic root of 3651428664 is about 1539.8825828283.

The spelling of 3651428664 in words is "three billion, six hundred fifty-one million, four hundred twenty-eight thousand, six hundred sixty-four".