204766834840 has 16 divisors (see below), whose sum is σ = 460725378480. Its totient is φ = 81906733920.

The previous prime is 204766834837. The next prime is 204766834907. The reversal of 204766834840 is 48438667402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2559585396 + ... + 2559585475.

It is an arithmetic number, because the mean of its divisors is an integer number (28795336155).

Almost surely, 2^204766834840 is an apocalyptic number.

204766834840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204766834840 is an abundant number, since it is smaller than the sum of its proper divisors (255958543640).

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

204766834840 is a wasteful number, since it uses less digits than its factorization.

204766834840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5119170882 (or 5119170878 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 52.

The spelling of 204766834840 in words is "two hundred four billion, seven hundred sixty-six million, eight hundred thirty-four thousand, eight hundred forty".