197404635605776 has 15 divisors (see below), whose sum is σ = 382471590374311. Its totient is φ = 98702289702736.

The previous prime is 197404635605699. The next prime is 197404635605803. The reversal of 197404635605776 is 677506536404791.

The square root of 197404635605776 is 14050076.

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

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 54444045 + ... + 57956563.

Almost surely, 2^{197404635605776} is an apocalyptic number.

197404635605776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

197404635605776 is the 14050076-th square number.

It is an amenable number.

197404635605776 is a deficient number, since it is larger than the sum of its proper divisors (185066954768535).

197404635605776 is an frugal number, since it uses more digits than its factorization.

197404635605776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7025046 (or 3512521 counting only the distinct ones).

The product of its (nonzero) digits is 800150400, while the sum is 70.

The spelling of 197404635605776 in words is "one hundred ninety-seven trillion, four hundred four billion, six hundred thirty-five million, six hundred five thousand, seven hundred seventy-six".