201898389504 has 624 divisors, whose sum is σ = 666938741760. Its totient is φ = 54045573120.

The previous prime is 201898389487. The next prime is 201898389571. The reversal of 201898389504 is 405983898102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 844763017 + ... + 844763255.

Almost surely, 2^201898389504 is an apocalyptic number.

201898389504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201898389504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333469370880).

201898389504 is an abundant number, since it is smaller than the sum of its proper divisors (465040352256).

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

201898389504 is a wasteful number, since it uses less digits than its factorization.

201898389504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 201898389504 in words is "two hundred one billion, eight hundred ninety-eight million, three hundred eighty-nine thousand, five hundred four".