197144959633 has 4 divisors (see below), whose sum is σ = 207521010160. Its totient is φ = 186768909108.

The previous prime is 197144959621. The next prime is 197144959639. The reversal of 197144959633 is 336959441791.

197144959633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 197144959633 - 2³⁷ = 59706006161 is a prime.

It is a super-2 number, since 2×197144959633² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197144959639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5188025235 + ... + 5188025272.

It is an arithmetic number, because the mean of its divisors is an integer number (51880252540).

Almost surely, 2^197144959633 is an apocalyptic number.

It is an amenable number.

197144959633 is a deficient number, since it is larger than the sum of its proper divisors (10376050527).

197144959633 is a wasteful number, since it uses less digits than its factorization.

197144959633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10376050526.

The product of its digits is 22044960, while the sum is 61.

The spelling of 197144959633 in words is "one hundred ninety-seven billion, one hundred forty-four million, nine hundred fifty-nine thousand, six hundred thirty-three".