198512903396 has 12 divisors (see below), whose sum is σ = 347737840380. Its totient is φ = 99159234720.

The previous prime is 198512903389. The next prime is 198512903411. The reversal of 198512903396 is 693309215891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 171904768996 + 26608134400 = 414614^2 + 163120^2 .

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, 24299651 + ... + 24307818.

It is an arithmetic number, because the mean of its divisors is an integer number (28978153365).

Almost surely, 2^198512903396 is an apocalyptic number.

It is an amenable number.

198512903396 is a deficient number, since it is larger than the sum of its proper divisors (149224936984).

198512903396 is a wasteful number, since it uses less digits than its factorization.

198512903396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48608494 (or 48608492 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 198512903396 in words is "one hundred ninety-eight billion, five hundred twelve million, nine hundred three thousand, three hundred ninety-six".