20204012437 has 8 divisors (see below), whose sum is σ = 23092016256. Its totient is φ = 17316437712.

The previous prime is 20204012377. The next prime is 20204012441. The reversal of 20204012437 is 73421040202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20204012437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204015437) 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, 903 + ... + 201019.

It is an arithmetic number, because the mean of its divisors is an integer number (2886502032).

Almost surely, 2^20204012437 is an apocalyptic number.

It is an amenable number.

20204012437 is a deficient number, since it is larger than the sum of its proper divisors (2888003819).

20204012437 is a wasteful number, since it uses less digits than its factorization.

20204012437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214547.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 20204012437 its reverse (73421040202), we get a palindrome (93625052639).

The spelling of 20204012437 in words is "twenty billion, two hundred four million, twelve thousand, four hundred thirty-seven".