200153423491 has 4 divisors (see below), whose sum is σ = 228746769712. Its totient is φ = 171560077272.

The previous prime is 200153423389. The next prime is 200153423521. The reversal of 200153423491 is 194324351002.

200153423491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 200153423491 - 2⁹ = 200153422979 is a prime.

It is a super-2 number, since 2×200153423491² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200153523491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14296673100 + ... + 14296673113.

It is an arithmetic number, because the mean of its divisors is an integer number (57186692428).

Almost surely, 2^200153423491 is an apocalyptic number.

200153423491 is a deficient number, since it is larger than the sum of its proper divisors (28593346221).

200153423491 is an equidigital number, since it uses as much as digits as its factorization.

200153423491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28593346220.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 200153423491 its reverse (194324351002), we get a palindrome (394477774493).

The spelling of 200153423491 in words is "two hundred billion, one hundred fifty-three million, four hundred twenty-three thousand, four hundred ninety-one".