198102947907 has 8 divisors (see below), whose sum is σ = 264143707920. Its totient is φ = 132065409920.

The previous prime is 198102947893. The next prime is 198102947941. The reversal of 198102947907 is 709749201891.

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

It is a cyclic number.

It is not a de Polignac number, because 198102947907 - 2¹⁰ = 198102946883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198102946907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658194 + ... + 910727.

It is an arithmetic number, because the mean of its divisors is an integer number (33017963490).

Almost surely, 2^198102947907 is an apocalyptic number.

198102947907 is a deficient number, since it is larger than the sum of its proper divisors (66040760013).

198102947907 is a wasteful number, since it uses less digits than its factorization.

198102947907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611013.

The product of its (nonzero) digits is 2286144, while the sum is 57.

The spelling of 198102947907 in words is "one hundred ninety-eight billion, one hundred two million, nine hundred forty-seven thousand, nine hundred seven".