197938658825 has 24 divisors (see below), whose sum is σ = 245889589440. Its totient is φ = 158063688000.

The previous prime is 197938658807. The next prime is 197938658833. The reversal of 197938658825 is 528856839791.

It is not a de Polignac number, because 197938658825 - 2⁶ = 197938658761 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55928906 + ... + 55932444.

It is an arithmetic number, because the mean of its divisors is an integer number (10245399560).

Almost surely, 2^197938658825 is an apocalyptic number.

It is an amenable number.

197938658825 is a deficient number, since it is larger than the sum of its proper divisors (47950930615).

197938658825 is a wasteful number, since it uses less digits than its factorization.

197938658825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6977 (or 6972 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 71.

The spelling of 197938658825 in words is "one hundred ninety-seven billion, nine hundred thirty-eight million, six hundred fifty-eight thousand, eight hundred twenty-five".