197797924071 has 24 divisors (see below), whose sum is σ = 311697933456. Its totient is φ = 119871239040.

The previous prime is 197797924067. The next prime is 197797924081. The reversal of 197797924071 is 170429797791.

197797924071 is a `hidden beast` number, since 1 + 97 + 79 + 79 + 2 + 407 + 1 = 666.

It is not a de Polignac number, because 197797924071 - 2² = 197797924067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197797924081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2438361 + ... + 2518173.

It is an arithmetic number, because the mean of its divisors is an integer number (12987413894).

Almost surely, 2^197797924071 is an apocalyptic number.

197797924071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

197797924071 is a deficient number, since it is larger than the sum of its proper divisors (113900009385).

197797924071 is a wasteful number, since it uses less digits than its factorization.

197797924071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104863 (or 104860 counting only the distinct ones).

The product of its (nonzero) digits is 14002632, while the sum is 63.

The spelling of 197797924071 in words is "one hundred ninety-seven billion, seven hundred ninety-seven million, nine hundred twenty-four thousand, seventy-one".