198240701931273 has 4 divisors (see below), whose sum is σ = 264320935908368. Its totient is φ = 132160467954180.

The previous prime is 198240701931221. The next prime is 198240701931277. The reversal of 198240701931273 is 372139107042891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 198240701931273 - 2³⁴ = 198223522062089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198240701931277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33040116988543 + ... + 33040116988548.

It is an arithmetic number, because the mean of its divisors is an integer number (66080233977092).

Almost surely, 2^{198240701931273} is an apocalyptic number.

It is an amenable number.

198240701931273 is a deficient number, since it is larger than the sum of its proper divisors (66080233977095).

198240701931273 is an equidigital number, since it uses as much as digits as its factorization.

198240701931273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66080233977094.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The spelling of 198240701931273 in words is "one hundred ninety-eight trillion, two hundred forty billion, seven hundred one million, nine hundred thirty-one thousand, two hundred seventy-three".