197857272810 has 32 divisors (see below), whose sum is σ = 475689120192. Its totient is φ = 52669532160.

The previous prime is 197857272797. The next prime is 197857272859. The reversal of 197857272810 is 18272758791.

It is a happy number.

197857272810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×197857272810² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5758039 + ... + 5792298.

It is an arithmetic number, because the mean of its divisors is an integer number (14865285006).

Almost surely, 2^197857272810 is an apocalyptic number.

197857272810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197857272810 is an abundant number, since it is smaller than the sum of its proper divisors (277831847382).

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

197857272810 is a wasteful number, since it uses less digits than its factorization.

197857272810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11550918.

The product of its (nonzero) digits is 3951360, while the sum is 57.

The spelling of 197857272810 in words is "one hundred ninety-seven billion, eight hundred fifty-seven million, two hundred seventy-two thousand, eight hundred ten".