198052578337823 has 8 divisors (see below), whose sum is σ = 227428798091520. Its totient is φ = 170571598568280.

The previous prime is 198052578337813. The next prime is 198052578337829. The reversal of 198052578337823 is 328733875250891.

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 198052578337823 - 2⁴ = 198052578337807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198052578337829) 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, 473809995815 + ... + 473809996232.

It is an arithmetic number, because the mean of its divisors is an integer number (28428599761440).

Almost surely, 2^{198052578337823} is an apocalyptic number.

198052578337823 is a deficient number, since it is larger than the sum of its proper divisors (29376219753697).

198052578337823 is a wasteful number, since it uses less digits than its factorization.

198052578337823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947619992077.

The product of its (nonzero) digits is 609638400, while the sum is 71.

It can be divided in two parts, 198052 and 578337823, that added together give a palindrome (578535875).

The spelling of 198052578337823 in words is "one hundred ninety-eight trillion, fifty-two billion, five hundred seventy-eight million, three hundred thirty-seven thousand, eight hundred twenty-three".