2104153904820 has 192 divisors, whose sum is σ = 6579872538624. Its totient is φ = 497995169280.

The previous prime is 2104153904807. The next prime is 2104153904851. The reversal of 2104153904820 is 284093514012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 62788189 + ... + 62821691.

It is an arithmetic number, because the mean of its divisors is an integer number (34270169472).

Almost surely, 2^{2104153904820} is an apocalyptic number.

2104153904820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2104153904820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3289936269312).

2104153904820 is an abundant number, since it is smaller than the sum of its proper divisors (4475718633804).

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

2104153904820 is a wasteful number, since it uses less digits than its factorization.

2104153904820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35782 (or 35780 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 2104153904820 in words is "two trillion, one hundred four billion, one hundred fifty-three million, nine hundred four thousand, eight hundred twenty".