8013890919720 has 96 divisors (see below), whose sum is σ = 27966843842400. Its totient is φ = 1831746494592.

The previous prime is 8013890919709. The next prime is 8013890919721. The reversal of 8013890919720 is 279190983108.

It is not an unprimeable number, because it can be changed into a prime (8013890919721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 681447430 + ... + 681459189.

It is an arithmetic number, because the mean of its divisors is an integer number (291321290025).

Almost surely, 2^{8013890919720} is an apocalyptic number.

It is an amenable number.

8013890919720 is an abundant number, since it is smaller than the sum of its proper divisors (19952952922680).

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

8013890919720 is a wasteful number, since it uses less digits than its factorization.

8013890919720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362906647 (or 1362906636 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 57.

The spelling of 8013890919720 in words is "eight trillion, thirteen billion, eight hundred ninety million, nine hundred nineteen thousand, seven hundred twenty".