197874313075464 has 256 divisors, whose sum is σ = 521155440288000. Its totient is φ = 62523709194240.

The previous prime is 197874313075433. The next prime is 197874313075487. The reversal of 197874313075464 is 464570313478791.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12771844902 + ... + 12771860394.

It is an arithmetic number, because the mean of its divisors is an integer number (2035763438625).

Almost surely, 2^{197874313075464} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197874313075464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260577720144000).

197874313075464 is an abundant number, since it is smaller than the sum of its proper divisors (323281127212536).

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

197874313075464 is a wasteful number, since it uses less digits than its factorization.

197874313075464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17128 (or 17124 counting only the distinct ones).

The product of its (nonzero) digits is 426746880, while the sum is 69.

The spelling of 197874313075464 in words is "one hundred ninety-seven trillion, eight hundred seventy-four billion, three hundred thirteen million, seventy-five thousand, four hundred sixty-four".