204774687132 has 48 divisors (see below), whose sum is σ = 497839843200. Its totient is φ = 65430348480.

The previous prime is 204774687101. The next prime is 204774687137. The reversal of 204774687132 is 231786477402.

It is a super-3 number, since 3×204774687132³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204774687137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2068294 + ... + 2165037.

It is an arithmetic number, because the mean of its divisors is an integer number (10371663400).

Almost surely, 2^204774687132 is an apocalyptic number.

It is an amenable number.

204774687132 is an abundant number, since it is smaller than the sum of its proper divisors (293065156068).

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

204774687132 is a wasteful number, since it uses less digits than its factorization.

204774687132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233506 (or 4233504 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 51.

The spelling of 204774687132 in words is "two hundred four billion, seven hundred seventy-four million, six hundred eighty-seven thousand, one hundred thirty-two".