197950210086 has 64 divisors (see below), whose sum is σ = 410300453376. Its totient is φ = 63617299200.

The previous prime is 197950210067. The next prime is 197950210093. The reversal of 197950210086 is 680012059791.

It is a super-2 number, since 2×197950210086² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21603346 + ... + 21612506.

It is an arithmetic number, because the mean of its divisors is an integer number (6410944584).

Almost surely, 2^197950210086 is an apocalyptic number.

197950210086 is an abundant number, since it is smaller than the sum of its proper divisors (212350243290).

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

197950210086 is a wasteful number, since it uses less digits than its factorization.

197950210086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10077.

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 197950210086 in words is "one hundred ninety-seven billion, nine hundred fifty million, two hundred ten thousand, eighty-six".