197127959904 has 48 divisors (see below), whose sum is σ = 574956552240. Its totient is φ = 65709319680.

The previous prime is 197127959827. The next prime is 197127959939. The reversal of 197127959904 is 409959721791.

It is a happy number.

197127959904 is a `hidden beast` number, since 19 + 7 + 1 + 27 + 9 + 599 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 114077817 + ... + 114079544.

It is an arithmetic number, because the mean of its divisors is an integer number (11978261505).

Almost surely, 2^197127959904 is an apocalyptic number.

It is an amenable number.

197127959904 is an abundant number, since it is smaller than the sum of its proper divisors (377828592336).

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

197127959904 is a wasteful number, since it uses less digits than its factorization.

197127959904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228157380 (or 228157366 counting only the distinct ones).

The product of its (nonzero) digits is 12859560, while the sum is 63.

The spelling of 197127959904 in words is "one hundred ninety-seven billion, one hundred twenty-seven million, nine hundred fifty-nine thousand, nine hundred four".