197578229632 has 64 divisors (see below), whose sum is σ = 459023868000. Its totient is φ = 84676365312.

The previous prime is 197578229603. The next prime is 197578229659. The reversal of 197578229632 is 236922875791.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2206213 + ... + 2294020.

Almost surely, 2^197578229632 is an apocalyptic number.

It is an amenable number.

197578229632 is an abundant number, since it is smaller than the sum of its proper divisors (261445638368).

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

197578229632 is an frugal number, since it uses more digits than its factorization.

197578229632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500268 (or 4500242 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 61.

The spelling of 197578229632 in words is "one hundred ninety-seven billion, five hundred seventy-eight million, two hundred twenty-nine thousand, six hundred thirty-two".