204334877551 has 8 divisors (see below), whose sum is σ = 237353862944. Its totient is φ = 172272964320.

The previous prime is 204334877519. The next prime is 204334877561. The reversal of 204334877551 is 155778433402.

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 204334877551 - 2⁵ = 204334877519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204334877495 and 204334877504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204334877561) 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, 239267580 + ... + 239268433.

It is an arithmetic number, because the mean of its divisors is an integer number (29669232868).

Almost surely, 2^204334877551 is an apocalyptic number.

204334877551 is a deficient number, since it is larger than the sum of its proper divisors (33018985393).

204334877551 is an equidigital number, since it uses as much as digits as its factorization.

204334877551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478536081.

The product of its (nonzero) digits is 2822400, while the sum is 49.

It can be divided in two parts, 20433 and 4877551, that added together give a palindrome (4897984).

The spelling of 204334877551 in words is "two hundred four billion, three hundred thirty-four million, eight hundred seventy-seven thousand, five hundred fifty-one".