3640549180932 has 144 divisors (see below), whose sum is σ = 9793377135360. Its totient is φ = 1137072328704.

The previous prime is 3640549180927. The next prime is 3640549180987. The reversal of 3640549180932 is 2390819450463.

3640549180932 is a `hidden beast` number, since 3 + 6 + 4 + 0 + 549 + 1 + 8 + 0 + 93 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22758373 + ... + 22917779.

It is an arithmetic number, because the mean of its divisors is an integer number (68009563440).

Almost surely, 2^{3640549180932} 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 3640549180932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4896688567680).

3640549180932 is an abundant number, since it is smaller than the sum of its proper divisors (6152827954428).

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

3640549180932 is a wasteful number, since it uses less digits than its factorization.

3640549180932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159802 (or 159797 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 3640549180932 in words is "three trillion, six hundred forty billion, five hundred forty-nine million, one hundred eighty thousand, nine hundred thirty-two".