2104781144020 has 24 divisors (see below), whose sum is σ = 4433394012768. Its totient is φ = 839368912800.

The previous prime is 2104781144017. The next prime is 2104781144021. The reversal of 2104781144020 is 204411874012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104781144021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158964766 + ... + 158978005.

It is an arithmetic number, because the mean of its divisors is an integer number (184724750532).

Almost surely, 2^{2104781144020} is an apocalyptic number.

2104781144020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104781144020 is an abundant number, since it is smaller than the sum of its proper divisors (2328612868748).

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

2104781144020 is a wasteful number, since it uses less digits than its factorization.

2104781144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317943111 (or 317943109 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The spelling of 2104781144020 in words is "two trillion, one hundred four billion, seven hundred eighty-one million, one hundred forty-four thousand, twenty".