194400180755231 has 8 divisors (see below), whose sum is σ = 214455766309200. Its totient is φ = 174741735509440.

The previous prime is 194400180755213. The next prime is 194400180755237. The reversal of 194400180755231 is 132557081004491.

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

It is not a de Polignac number, because 194400180755231 - 2¹⁰ = 194400180754207 is a prime.

It is a super-2 number, since 2×194400180755231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194400180755231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194400180755237) 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, 99285076016 + ... + 99285077973.

It is an arithmetic number, because the mean of its divisors is an integer number (26806970788650).

Almost surely, 2^{194400180755231} is an apocalyptic number.

194400180755231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

194400180755231 is a deficient number, since it is larger than the sum of its proper divisors (20055585553969).

194400180755231 is a wasteful number, since it uses less digits than its factorization.

194400180755231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198570154089.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 194400180755231 in words is "one hundred ninety-four trillion, four hundred billion, one hundred eighty million, seven hundred fifty-five thousand, two hundred thirty-one".