204412621623351 has 8 divisors (see below), whose sum is σ = 272569167183984. Its totient is φ = 136265578572480.

The previous prime is 204412621623271. The next prime is 204412621623361. The reversal of 204412621623351 is 153326126214402.

204412621623351 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 204412621623351 - 2³⁵ = 204378261884983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204412621623361) 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, 2375577246 + ... + 2375663291.

It is an arithmetic number, because the mean of its divisors is an integer number (34071145897998).

Almost surely, 2^{204412621623351} is an apocalyptic number.

204412621623351 is a deficient number, since it is larger than the sum of its proper divisors (68156545560633).

204412621623351 is a wasteful number, since it uses less digits than its factorization.

204412621623351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4751254881.

The product of its (nonzero) digits is 414720, while the sum is 42.

Adding to 204412621623351 its reverse (153326126214402), we get a palindrome (357738747837753).

The spelling of 204412621623351 in words is "two hundred four trillion, four hundred twelve billion, six hundred twenty-one million, six hundred twenty-three thousand, three hundred fifty-one".