201898838698 has 8 divisors (see below), whose sum is σ = 303941573892. Its totient is φ = 100584980736.

The previous prime is 201898838683. The next prime is 201898838723. The reversal of 201898838698 is 896838898102.

It can be written as a sum of positive squares in 2 ways, for example, as 199132815049 + 2766023649 = 446243^2 + 52593^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 182218615 + ... + 182219722.

Almost surely, 2^201898838698 is an apocalyptic number.

201898838698 is a deficient number, since it is larger than the sum of its proper divisors (102042735194).

201898838698 is a wasteful number, since it uses less digits than its factorization.

201898838698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364438616.

The product of its (nonzero) digits is 95551488, while the sum is 70.

The spelling of 201898838698 in words is "two hundred one billion, eight hundred ninety-eight million, eight hundred thirty-eight thousand, six hundred ninety-eight".