3653643012 has 96 divisors (see below), whose sum is σ = 9266503680. Its totient is φ = 1117079040.

The previous prime is 3653642987. The next prime is 3653643067. The reversal of 3653643012 is 2103463563.

It is a super-3 number, since 3×3653643012³ (a number of 30 digits) contains 333 as substring.

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, 964939 + ... + 968717.

It is an arithmetic number, because the mean of its divisors is an integer number (96526080).

Almost surely, 2^3653643012 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 3653643012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4633251840).

3653643012 is an abundant number, since it is smaller than the sum of its proper divisors (5612860668).

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

3653643012 is a wasteful number, since it uses less digits than its factorization.

3653643012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953 (or 3951 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 3653643012 is about 60445.3721305445. The cubic root of 3653643012 is about 1540.1937986275.

The spelling of 3653643012 in words is "three billion, six hundred fifty-three million, six hundred forty-three thousand, twelve".