197874313075394 has 32 divisors (see below), whose sum is σ = 311597116323840. Its totient is φ = 94061677248000.

The previous prime is 197874313075393. The next prime is 197874313075433. The reversal of 197874313075394 is 493570313478791.

It is not an unprimeable number, because it can be changed into a prime (197874313075393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175822 + ... + 19928150.

It is an arithmetic number, because the mean of its divisors is an integer number (9737409885120).

Almost surely, 2^{197874313075394} is an apocalyptic number.

197874313075394 is a deficient number, since it is larger than the sum of its proper divisors (113722803248446).

197874313075394 is a wasteful number, since it uses less digits than its factorization.

197874313075394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18753746.

The product of its (nonzero) digits is 480090240, while the sum is 71.

The spelling of 197874313075394 in words is "one hundred ninety-seven trillion, eight hundred seventy-four billion, three hundred thirteen million, seventy-five thousand, three hundred ninety-four".