197211018284 has 24 divisors (see below), whose sum is σ = 394437120000. Its totient is φ = 84515775696.

The previous prime is 197211018253. The next prime is 197211018409. The reversal of 197211018284 is 482810112791.

197211018284 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 2×197211018284² (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 7 ways as a sum of consecutive naturals, for example, 701717 + ... + 941715.

It is an arithmetic number, because the mean of its divisors is an integer number (16434880000).

Almost surely, 2^197211018284 is an apocalyptic number.

197211018284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

197211018284 is an abundant number, since it is smaller than the sum of its proper divisors (197226101716).

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

197211018284 is a wasteful number, since it uses less digits than its factorization.

197211018284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269357 (or 269355 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 44.

The spelling of 197211018284 in words is "one hundred ninety-seven billion, two hundred eleven million, eighteen thousand, two hundred eighty-four".