197853922468 has 12 divisors (see below), whose sum is σ = 346779522432. Its totient is φ = 98774058920.

The previous prime is 197853922271. The next prime is 197853922489. The reversal of 197853922468 is 864229358791.

It is a super-2 number, since 2×197853922468² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38222668 + ... + 38227843.

It is an arithmetic number, because the mean of its divisors is an integer number (28898293536).

Almost surely, 2^197853922468 is an apocalyptic number.

It is an amenable number.

197853922468 is a deficient number, since it is larger than the sum of its proper divisors (148925599964).

197853922468 is a wasteful number, since it uses less digits than its factorization.

197853922468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76451162 (or 76451160 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 64.

The spelling of 197853922468 in words is "one hundred ninety-seven billion, eight hundred fifty-three million, nine hundred twenty-two thousand, four hundred sixty-eight".