197889237967 has 8 divisors (see below), whose sum is σ = 201708350480. Its totient is φ = 194100079680.

The previous prime is 197889237947. The next prime is 197889238013. The reversal of 197889237967 is 769732988791.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197889237967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197889237893 and 197889237902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197889237947) 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, 7475217 + ... + 7501642.

It is an arithmetic number, because the mean of its divisors is an integer number (25213543810).

Almost surely, 2^197889237967 is an apocalyptic number.

197889237967 is a deficient number, since it is larger than the sum of its proper divisors (3819112513).

197889237967 is a wasteful number, since it uses less digits than its factorization.

197889237967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14977113.

The product of its digits is 576108288, while the sum is 76.

The spelling of 197889237967 in words is "one hundred ninety-seven billion, eight hundred eighty-nine million, two hundred thirty-seven thousand, nine hundred sixty-seven".