204686923580 has 96 divisors (see below), whose sum is σ = 455242733568. Its totient is φ = 77145868800.

The previous prime is 204686923547. The next prime is 204686923613. The reversal of 204686923580 is 85329686402.

It is an interprime number because it is at equal distance from previous prime (204686923547) and next prime (204686923613).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30588035 + ... + 30594725.

It is an arithmetic number, because the mean of its divisors is an integer number (4742111808).

Almost surely, 2^204686923580 is an apocalyptic number.

204686923580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204686923580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227621366784).

204686923580 is an abundant number, since it is smaller than the sum of its proper divisors (250555809988).

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

204686923580 is a wasteful number, since it uses less digits than its factorization.

204686923580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7707 (or 7705 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 204686923580 in words is "two hundred four billion, six hundred eighty-six million, nine hundred twenty-three thousand, five hundred eighty".