197214384728 has 16 divisors (see below), whose sum is σ = 372225827760. Its totient is φ = 97954164000.

The previous prime is 197214384643. The next prime is 197214384767. The reversal of 197214384728 is 827483412791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81627263 + ... + 81629678.

It is an arithmetic number, because the mean of its divisors is an integer number (23264114235).

Almost surely, 2^197214384728 is an apocalyptic number.

It is an amenable number.

197214384728 is a deficient number, since it is larger than the sum of its proper divisors (175011443032).

197214384728 is a wasteful number, since it uses less digits than its factorization.

197214384728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163257098 (or 163257094 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 56.

The spelling of 197214384728 in words is "one hundred ninety-seven billion, two hundred fourteen million, three hundred eighty-four thousand, seven hundred twenty-eight".