204212403998 has 4 divisors (see below), whose sum is σ = 306318606000. Its totient is φ = 102106201998.

The previous prime is 204212403991. The next prime is 204212404007. The reversal of 204212403998 is 899304212402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204212403991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51053100998 + ... + 51053101001.

It is an arithmetic number, because the mean of its divisors is an integer number (76579651500).

Almost surely, 2^204212403998 is an apocalyptic number.

204212403998 is a deficient number, since it is larger than the sum of its proper divisors (102106202002).

204212403998 is a wasteful number, since it uses less digits than its factorization.

204212403998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102106202001.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 204212403998 in words is "two hundred four billion, two hundred twelve million, four hundred three thousand, nine hundred ninety-eight".