197544947460 has 432 divisors, whose sum is σ = 688068924480. Its totient is φ = 42172300800.

The previous prime is 197544947447. The next prime is 197544947471. The reversal of 197544947460 is 64749445791.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 197544947394 and 197544947403.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 81933655 + ... + 81936065.

It is an arithmetic number, because the mean of its divisors is an integer number (1592752140).

Almost surely, 2^197544947460 is an apocalyptic number.

197544947460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197544947460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344034462240).

197544947460 is an abundant number, since it is smaller than the sum of its proper divisors (490523977020).

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

197544947460 is a wasteful number, since it uses less digits than its factorization.

197544947460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528 (or 2488 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 60.

The spelling of 197544947460 in words is "one hundred ninety-seven billion, five hundred forty-four million, nine hundred forty-seven thousand, four hundred sixty".