197805052842 has 8 divisors (see below), whose sum is σ = 395610105696. Its totient is φ = 65935017612.

The previous prime is 197805052829. The next prime is 197805052843. The reversal of 197805052842 is 248250508791.

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

197805052842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (197805052843) 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, 16483754398 + ... + 16483754409.

It is an arithmetic number, because the mean of its divisors is an integer number (49451263212).

Almost surely, 2^197805052842 is an apocalyptic number.

197805052842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197805052842 is a wasteful number, since it uses less digits than its factorization.

197805052842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32967508812.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 197805052842 in words is "one hundred ninety-seven billion, eight hundred five million, fifty-two thousand, eight hundred forty-two".