189813195297 has 12 divisors (see below), whose sum is σ = 299099580624. Its totient is φ = 115038300120.

The previous prime is 189813195277. The next prime is 189813195301. The reversal of 189813195297 is 792591318981.

189813195297 is a `hidden beast` number, since 1 + 8 + 98 + 1 + 3 + 19 + 529 + 7 = 666.

It is not a de Polignac number, because 189813195297 - 2¹¹ = 189813193249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189813195277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 958652403 + ... + 958652600.

It is an arithmetic number, because the mean of its divisors is an integer number (24924965052).

Almost surely, 2^189813195297 is an apocalyptic number.

It is an amenable number.

189813195297 is a deficient number, since it is larger than the sum of its proper divisors (109286385327).

189813195297 is a wasteful number, since it uses less digits than its factorization.

189813195297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917305020 (or 1917305017 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 63.

The spelling of 189813195297 in words is "one hundred eighty-nine billion, eight hundred thirteen million, one hundred ninety-five thousand, two hundred ninety-seven".