3601964772 has 144 divisors (see below), whose sum is σ = 11208916992. Its totient is φ = 952585920.

The previous prime is 3601964771. The next prime is 3601964801. The reversal of 3601964772 is 2774691063.

It is not an unprimeable number, because it can be changed into a prime (3601964771) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 169653 + ... + 189699.

Almost surely, 2^3601964772 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 3601964772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5604458496).

3601964772 is an abundant number, since it is smaller than the sum of its proper divisors (7606952220).

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

3601964772 is a wasteful number, since it uses less digits than its factorization.

3601964772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20118 (or 20113 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 3601964772 is about 60016.3708666227. The cubic root of 3601964772 is about 1532.8976332114.

The spelling of 3601964772 in words is "three billion, six hundred one million, nine hundred sixty-four thousand, seven hundred seventy-two".