201838980895 has 16 divisors (see below), whose sum is σ = 252768911040. Its totient is φ = 154431506944.

The previous prime is 201838980869. The next prime is 201838980907. The reversal of 201838980895 is 598089838102.

It is a cyclic number.

It is not a de Polignac number, because 201838980895 - 2¹³ = 201838972703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857577 + ... + 1067293.

It is an arithmetic number, because the mean of its divisors is an integer number (15798056940).

Almost surely, 2^201838980895 is an apocalyptic number.

201838980895 is a deficient number, since it is larger than the sum of its proper divisors (50929930145).

201838980895 is a wasteful number, since it uses less digits than its factorization.

201838980895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218114.

The product of its (nonzero) digits is 9953280, while the sum is 61.

The spelling of 201838980895 in words is "two hundred one billion, eight hundred thirty-eight million, nine hundred eighty thousand, eight hundred ninety-five".