3651286464 has 224 divisors, whose sum is σ = 12426086400. Its totient is φ = 1029749760.

The previous prime is 3651286439. The next prime is 3651286517. The reversal of 3651286464 is 4646821563.

3651286464 is a `hidden beast` number, since 3 + 65 + 128 + 6 + 464 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 953674 + ... + 957494.

It is an arithmetic number, because the mean of its divisors is an integer number (55473600).

Almost surely, 2^3651286464 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 3651286464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6213043200).

3651286464 is an abundant number, since it is smaller than the sum of its proper divisors (8774799936).

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

3651286464 is a wasteful number, since it uses less digits than its factorization.

3651286464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928 (or 3912 counting only the distinct ones).

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

The square root of 3651286464 is about 60425.8757818205. The cubic root of 3651286464 is about 1539.8625930137.

The spelling of 3651286464 in words is "three billion, six hundred fifty-one million, two hundred eighty-six thousand, four hundred sixty-four".