204710711478 has 96 divisors (see below), whose sum is σ = 529447080960. Its totient is φ = 52248006720.

The previous prime is 204710711477. The next prime is 204710711501. The reversal of 204710711478 is 874117017402.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204710711473) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 745408 + ... + 982371.

It is an arithmetic number, because the mean of its divisors is an integer number (5515073760).

Almost surely, 2^204710711478 is an apocalyptic number.

204710711478 is an abundant number, since it is smaller than the sum of its proper divisors (324736369482).

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

204710711478 is a wasteful number, since it uses less digits than its factorization.

204710711478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727842 (or 1727835 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 42.

The spelling of 204710711478 in words is "two hundred four billion, seven hundred ten million, seven hundred eleven thousand, four hundred seventy-eight".