197664526472 has 24 divisors (see below), whose sum is σ = 431130536910. Its totient is φ = 84713368320.

The previous prime is 197664526439. The next prime is 197664526517. The reversal of 197664526472 is 274625466791.

It can be written as a sum of positive squares in only one way, i.e., 168735279076 + 28929247396 = 410774^2 + 170086^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252122729 + ... + 252123512.

Almost surely, 2^197664526472 is an apocalyptic number.

It is an amenable number.

197664526472 is an abundant number, since it is smaller than the sum of its proper divisors (233466010438).

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

197664526472 is a wasteful number, since it uses less digits than its factorization.

197664526472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504246261 (or 504246250 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 59.

The spelling of 197664526472 in words is "one hundred ninety-seven billion, six hundred sixty-four million, five hundred twenty-six thousand, four hundred seventy-two".