200421078896 has 60 divisors (see below), whose sum is σ = 406198584960. Its totient is φ = 95790900480.

The previous prime is 200421078839. The next prime is 200421078911. The reversal of 200421078896 is 698870124002.

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 200421078896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14559665 + ... + 14573423.

It is an arithmetic number, because the mean of its divisors is an integer number (6769976416).

Almost surely, 2^200421078896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200421078896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203099292480).

200421078896 is an abundant number, since it is smaller than the sum of its proper divisors (205777506064).

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

200421078896 is a wasteful number, since it uses less digits than its factorization.

200421078896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15534 (or 15505 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 200421078896 in words is "two hundred billion, four hundred twenty-one million, seventy-eight thousand, eight hundred ninety-six".