197695836900 has 81 divisors (see below), whose sum is σ = 619708430523. Its totient is φ = 52715332800.

The previous prime is 197695836883. The next prime is 197695836907. The reversal of 197695836900 is 9638596791.

The square root of 197695836900 is 444630.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 8032102884 + 189663734016 = 89622^2 + 435504^2 .

It is a super-2 number, since 2×197695836900² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197695836907) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13331490 + ... + 13346310.

Almost surely, 2^197695836900 is an apocalyptic number.

197695836900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197695836900 is the 444630-th square number.

It is an amenable number.

197695836900 is an abundant number, since it is smaller than the sum of its proper divisors (422012593623).

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

197695836900 is an equidigital number, since it uses as much as digits as its factorization.

197695836900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29662 (or 14831 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 63.

The spelling of 197695836900 in words is "one hundred ninety-seven billion, six hundred ninety-five million, eight hundred thirty-six thousand, nine hundred".