197544746460 has 48 divisors (see below), whose sum is σ = 577174219776. Its totient is φ = 50388224832.

The previous prime is 197544746351. The next prime is 197544746507. The reversal of 197544746460 is 64647445791.

It is a self number, because there is not a number n which added to its sum of digits gives 197544746460.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71572804 + ... + 71575563.

It is an arithmetic number, because the mean of its divisors is an integer number (12024462912).

Almost surely, 2^197544746460 is an apocalyptic number.

197544746460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197544746460 is an abundant number, since it is smaller than the sum of its proper divisors (379629473316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197544746460 is a wasteful number, since it uses less digits than its factorization.

197544746460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143148402 (or 143148400 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 197544746460 in words is "one hundred ninety-seven billion, five hundred forty-four million, seven hundred forty-six thousand, four hundred sixty".