20004543694730 has 24 divisors (see below), whose sum is σ = 41887064961828. Its totient is φ = 6858700695168.

The previous prime is 20004543694717. The next prime is 20004543694771. The reversal of 20004543694730 is 3749634540002.

It can be written as a sum of positive squares in 2 ways, for example, as 19904598562849 + 99945131881 = 4461457^2 + 316141^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20412799199 + ... + 20412800178.

Almost surely, 2^{20004543694730} is an apocalyptic number.

20004543694730 is an abundant number, since it is smaller than the sum of its proper divisors (21882521267098).

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

20004543694730 is a wasteful number, since it uses less digits than its factorization.

20004543694730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40825599398 (or 40825599391 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 20004543694730 in words is "twenty trillion, four billion, five hundred forty-three million, six hundred ninety-four thousand, seven hundred thirty".