204026251089 has 4 divisors (see below), whose sum is σ = 272035001456. Its totient is φ = 136017500724.

The previous prime is 204026251069. The next prime is 204026251097. The reversal of 204026251089 is 980152620402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 204026251089 - 2⁹ = 204026250577 is a prime.

It is a super-2 number, since 2×204026251089² (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 (204026251069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34004375179 + ... + 34004375184.

It is an arithmetic number, because the mean of its divisors is an integer number (68008750364).

Almost surely, 2^204026251089 is an apocalyptic number.

It is an amenable number.

204026251089 is a deficient number, since it is larger than the sum of its proper divisors (68008750367).

204026251089 is an equidigital number, since it uses as much as digits as its factorization.

204026251089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68008750366.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 204026251089 in words is "two hundred four billion, twenty-six million, two hundred fifty-one thousand, eighty-nine".