3915603894020 has 96 divisors (see below), whose sum is σ = 10262870263296. Its totient is φ = 1221770188800.

The previous prime is 3915603893893. The next prime is 3915603894029. The reversal of 3915603894020 is 204983065193.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3915603894020.

It is not an unprimeable number, because it can be changed into a prime (3915603894029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15021701 + ... + 15280140.

It is an arithmetic number, because the mean of its divisors is an integer number (106904898576).

Almost surely, 2^{3915603894020} is an apocalyptic number.

It is an amenable number.

3915603894020 is an abundant number, since it is smaller than the sum of its proper divisors (6347266369276).

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

3915603894020 is a wasteful number, since it uses less digits than its factorization.

3915603894020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30301941 (or 30301939 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 3915603894020 in words is "three trillion, nine hundred fifteen billion, six hundred three million, eight hundred ninety-four thousand, twenty".