197143525063 has 4 divisors (see below), whose sum is σ = 201728258248. Its totient is φ = 192558791880.

The previous prime is 197143525013. The next prime is 197143525127. The reversal of 197143525063 is 360525341791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197143525063 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 (197143525013) 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, 2292366528 + ... + 2292366613.

It is an arithmetic number, because the mean of its divisors is an integer number (50432064562).

Almost surely, 2^197143525063 is an apocalyptic number.

197143525063 is a deficient number, since it is larger than the sum of its proper divisors (4584733185).

197143525063 is an equidigital number, since it uses as much as digits as its factorization.

197143525063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584733184.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 197143525063 in words is "one hundred ninety-seven billion, one hundred forty-three million, five hundred twenty-five thousand, sixty-three".