197195822907 has 8 divisors (see below), whose sum is σ = 262936461840. Its totient is φ = 131459532960.

The previous prime is 197195822891. The next prime is 197195822963. The reversal of 197195822907 is 709228591791.

It is a happy number.

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

It is not a de Polignac number, because 197195822907 - 2⁴ = 197195822891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197195822977) 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, 979932 + ... + 1163897.

It is an arithmetic number, because the mean of its divisors is an integer number (32867057730).

Almost surely, 2^197195822907 is an apocalyptic number.

197195822907 is a deficient number, since it is larger than the sum of its proper divisors (65740638933).

197195822907 is a wasteful number, since it uses less digits than its factorization.

197195822907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174493.

The product of its (nonzero) digits is 5715360, while the sum is 60.

The spelling of 197195822907 in words is "one hundred ninety-seven billion, one hundred ninety-five million, eight hundred twenty-two thousand, nine hundred seven".