204251113407 has 16 divisors (see below), whose sum is σ = 297297348480. Its totient is φ = 123703212000.

The previous prime is 204251113397. The next prime is 204251113471. The reversal of 204251113407 is 704311152402.

It is not a de Polignac number, because 204251113407 - 2¹⁴ = 204251097023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204251113207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2084932 + ... + 2180697.

It is an arithmetic number, because the mean of its divisors is an integer number (18581084280).

Almost surely, 2^204251113407 is an apocalyptic number.

204251113407 is a deficient number, since it is larger than the sum of its proper divisors (93046235073).

204251113407 is a wasteful number, since it uses less digits than its factorization.

204251113407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4267094.

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 204251113407 its reverse (704311152402), we get a palindrome (908562265809).

The spelling of 204251113407 in words is "two hundred four billion, two hundred fifty-one million, one hundred thirteen thousand, four hundred seven".