198873263615 has 16 divisors (see below), whose sum is σ = 257982677568. Its totient is φ = 146301839616.

The previous prime is 198873263599. The next prime is 198873263669. The reversal of 198873263615 is 516362378891.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 198873263615 - 2⁴ = 198873263599 is a prime.

It is a Duffinian number.

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, 5799614 + ... + 5833803.

It is an arithmetic number, because the mean of its divisors is an integer number (16123917348).

Almost surely, 2^198873263615 is an apocalyptic number.

198873263615 is a deficient number, since it is larger than the sum of its proper divisors (59109413953).

198873263615 is a wasteful number, since it uses less digits than its factorization.

198873263615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11633698.

The product of its digits is 13063680, while the sum is 59.

The spelling of 198873263615 in words is "one hundred ninety-eight billion, eight hundred seventy-three million, two hundred sixty-three thousand, six hundred fifteen".