197689419572 has 12 divisors (see below), whose sum is σ = 348278340900. Its totient is φ = 98181322176.

The previous prime is 197689419547. The next prime is 197689419589. The reversal of 197689419572 is 275914986791.

It can be written as a sum of positive squares in 2 ways, for example, as 25409635216 + 172279784356 = 159404^2 + 415066^2 .

It is a super-2 number, since 2×197689419572² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165846233 + ... + 165847424.

It is an arithmetic number, because the mean of its divisors is an integer number (29023195075).

Almost surely, 2^197689419572 is an apocalyptic number.

It is an amenable number.

197689419572 is a deficient number, since it is larger than the sum of its proper divisors (150588921328).

197689419572 is a wasteful number, since it uses less digits than its factorization.

197689419572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331693810 (or 331693808 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 68.

The spelling of 197689419572 in words is "one hundred ninety-seven billion, six hundred eighty-nine million, four hundred nineteen thousand, five hundred seventy-two".