197963538347 has 4 divisors (see below), whose sum is σ = 199408527816. Its totient is φ = 196518548880.

The previous prime is 197963538341. The next prime is 197963538373. The reversal of 197963538347 is 743835369791.

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

It is a cyclic number.

It is not a de Polignac number, because 197963538347 - 2²⁶ = 197896429483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197963538341) 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, 722494529 + ... + 722494802.

It is an arithmetic number, because the mean of its divisors is an integer number (49852131954).

Almost surely, 2^197963538347 is an apocalyptic number.

197963538347 is a deficient number, since it is larger than the sum of its proper divisors (1444989469).

197963538347 is a wasteful number, since it uses less digits than its factorization.

197963538347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444989468.

The product of its digits is 102876480, while the sum is 65.

The spelling of 197963538347 in words is "one hundred ninety-seven billion, nine hundred sixty-three million, five hundred thirty-eight thousand, three hundred forty-seven".