204023311439 has 8 divisors (see below), whose sum is σ = 209679700560. Its totient is φ = 198408361536.

The previous prime is 204023311423. The next prime is 204023311483. The reversal of 204023311439 is 934113320402.

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

It is a cyclic number.

It is not a de Polignac number, because 204023311439 - 2⁴ = 204023311423 is a prime.

It is a super-2 number, since 2×204023311439² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204023319439) 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, 10349822 + ... + 10369515.

It is an arithmetic number, because the mean of its divisors is an integer number (26209962570).

Almost surely, 2^204023311439 is an apocalyptic number.

204023311439 is a deficient number, since it is larger than the sum of its proper divisors (5656389121).

204023311439 is a wasteful number, since it uses less digits than its factorization.

204023311439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20719609.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 204023311439 in words is "two hundred four billion, twenty-three million, three hundred eleven thousand, four hundred thirty-nine".