200389421436 has 12 divisors (see below), whose sum is σ = 467575316712. Its totient is φ = 66796473808.

The previous prime is 200389421423. The next prime is 200389421461. The reversal of 200389421436 is 634124983002.

It is a tau number, because it is divible by the number of its divisors (12).

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, 8349559215 + ... + 8349559238.

It is an arithmetic number, because the mean of its divisors is an integer number (38964609726).

Almost surely, 2^200389421436 is an apocalyptic number.

It is an amenable number.

200389421436 is an abundant number, since it is smaller than the sum of its proper divisors (267185895276).

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

200389421436 is a wasteful number, since it uses less digits than its factorization.

200389421436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16699118460 (or 16699118458 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 200389421436 in words is "two hundred billion, three hundred eighty-nine million, four hundred twenty-one thousand, four hundred thirty-six".