200023644742 has 4 divisors (see below), whose sum is σ = 300035467116. Its totient is φ = 100011822370.

The previous prime is 200023644739. The next prime is 200023644757. The reversal of 200023644742 is 247446320002.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 200023644698 and 200023644707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005911184 + ... + 50005911187.

It is an arithmetic number, because the mean of its divisors is an integer number (75008866779).

Almost surely, 2^200023644742 is an apocalyptic number.

200023644742 is a deficient number, since it is larger than the sum of its proper divisors (100011822374).

200023644742 is a wasteful number, since it uses less digits than its factorization.

200023644742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100011822373.

The product of its (nonzero) digits is 64512, while the sum is 34.

Adding to 200023644742 its reverse (247446320002), we get a palindrome (447469964744).

The spelling of 200023644742 in words is "two hundred billion, twenty-three million, six hundred forty-four thousand, seven hundred forty-two".