204763906988 has 6 divisors (see below), whose sum is σ = 358336837236. Its totient is φ = 102381953492.

The previous prime is 204763906957. The next prime is 204763906993. The reversal of 204763906988 is 889609367402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 204763906988.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25595488370 + ... + 25595488377.

It is an arithmetic number, because the mean of its divisors is an integer number (59722806206).

Almost surely, 2^204763906988 is an apocalyptic number.

It is an amenable number.

204763906988 is a deficient number, since it is larger than the sum of its proper divisors (153572930248).

204763906988 is a wasteful number, since it uses less digits than its factorization.

204763906988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51190976751 (or 51190976749 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 204763906988 in words is "two hundred four billion, seven hundred sixty-three million, nine hundred six thousand, nine hundred eighty-eight".