3644020115008 has 112 divisors (see below), whose sum is σ = 9186909727744. Its totient is φ = 1395087390720.

The previous prime is 3644020115003. The next prime is 3644020115009. The reversal of 3644020115008 is 8005110204463.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (3644020115003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9911235 + ... + 10272322.

It is an arithmetic number, because the mean of its divisors is an integer number (82025979712).

Almost surely, 2^{3644020115008} is an apocalyptic number.

It is an amenable number.

3644020115008 is an abundant number, since it is smaller than the sum of its proper divisors (5542889612736).

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

3644020115008 is a wasteful number, since it uses less digits than its factorization.

3644020115008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20183620 (or 20183610 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 3644020115008 in words is "three trillion, six hundred forty-four billion, twenty million, one hundred fifteen thousand, eight".