20004543694724 has 12 divisors (see below), whose sum is σ = 35008709061900. Its totient is φ = 10002055391328.

The previous prime is 20004543694717. The next prime is 20004543694771. The reversal of 20004543694724 is 42749634540002.

It can be written as a sum of positive squares in 2 ways, for example, as 17889939122500 + 2114604572224 = 4229650^2 + 1454168^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53905979 + ... + 54275810.

It is an arithmetic number, because the mean of its divisors is an integer number (2917392421825).

Almost surely, 2^{20004543694724} is an apocalyptic number.

It is an amenable number.

20004543694724 is a deficient number, since it is larger than the sum of its proper divisors (15004165367176).

20004543694724 is a wasteful number, since it uses less digits than its factorization.

20004543694724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108228022 (or 108228020 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 50.

The spelling of 20004543694724 in words is "twenty trillion, four billion, five hundred forty-three million, six hundred ninety-four thousand, seven hundred twenty-four".