197906042880 has 2496 divisors, whose sum is σ = 961720381440. Its totient is φ = 37838389248.

The previous prime is 197906042863. The next prime is 197906042881. The reversal of 197906042880 is 88240609791.

197906042880 is a `hidden beast` number, since 1 + 9 + 7 + 9 + 0 + 604 + 28 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2496).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197906042881) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8604610549 + ... + 8604610571.

It is an arithmetic number, because the mean of its divisors is an integer number (385304640).

Almost surely, 2^197906042880 is an apocalyptic number.

197906042880 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 197906042880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480860190720).

197906042880 is an abundant number, since it is smaller than the sum of its proper divisors (763814338560).

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

197906042880 is a wasteful number, since it uses less digits than its factorization.

197906042880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 197906042880 in words is "one hundred ninety-seven billion, nine hundred six million, forty-two thousand, eight hundred eighty".