197964647812 has 12 divisors (see below), whose sum is σ = 351608852560. Its totient is φ = 97504975656.

The previous prime is 197964647809. The next prime is 197964647821. The reversal of 197964647812 is 218746469791.

197964647812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369336762 + ... + 369337297.

Almost surely, 2^197964647812 is an apocalyptic number.

It is an amenable number.

197964647812 is a deficient number, since it is larger than the sum of its proper divisors (153644204748).

197964647812 is a wasteful number, since it uses less digits than its factorization.

197964647812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738674130 (or 738674128 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 64.

The spelling of 197964647812 in words is "one hundred ninety-seven billion, nine hundred sixty-four million, six hundred forty-seven thousand, eight hundred twelve".