204517264270 has 128 divisors (see below), whose sum is σ = 432076861440. Its totient is φ = 68872826880.

The previous prime is 204517264249. The next prime is 204517264277. The reversal of 204517264270 is 72462715402.

It is a super-2 number, since 2×204517264270² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204517264277) 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 63 ways as a sum of consecutive naturals, for example, 46237279 + ... + 46241701.

It is an arithmetic number, because the mean of its divisors is an integer number (3375600480).

Almost surely, 2^204517264270 is an apocalyptic number.

204517264270 is an abundant number, since it is smaller than the sum of its proper divisors (227559597170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204517264270 is a wasteful number, since it uses less digits than its factorization.

204517264270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4850.

The product of its (nonzero) digits is 188160, while the sum is 40.

Adding to 204517264270 its reverse (72462715402), we get a palindrome (276979979672).

The spelling of 204517264270 in words is "two hundred four billion, five hundred seventeen million, two hundred sixty-four thousand, two hundred seventy".