197401721332 has 12 divisors (see below), whose sum is σ = 357365185380. Its totient is φ = 95297382656.

The previous prime is 197401721299. The next prime is 197401721369. The reversal of 197401721332 is 233127104791.

It can be written as a sum of positive squares in 2 ways, for example, as 105523624336 + 91878096996 = 324844^2 + 303114^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850869373 + ... + 850869604.

It is an arithmetic number, because the mean of its divisors is an integer number (29780432115).

Almost surely, 2^197401721332 is an apocalyptic number.

It is an amenable number.

197401721332 is a deficient number, since it is larger than the sum of its proper divisors (159963464048).

197401721332 is a wasteful number, since it uses less digits than its factorization.

197401721332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701739010 (or 1701739008 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 197401721332 in words is "one hundred ninety-seven billion, four hundred one million, seven hundred twenty-one thousand, three hundred thirty-two".