20049993604 has 27 divisors (see below), whose sum is σ = 35557007493. Its totient is φ = 9892602672.

The previous prime is 20049993589. The next prime is 20049993611. The reversal of 20049993604 is 40639994002.

The square root of 20049993604 is 141598.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1158040900 + 18891952704 = 34030^2 + 137448^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23504842 + ... + 23505694.

Almost surely, 2^20049993604 is an apocalyptic number.

20049993604 is the 141598-th square number.

It is an amenable number.

20049993604 is a deficient number, since it is larger than the sum of its proper divisors (15507013889).

20049993604 is an frugal number, since it uses more digits than its factorization.

20049993604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 20049993604 in words is "twenty billion, forty-nine million, nine hundred ninety-three thousand, six hundred four".