197933890934404 has 9 divisors (see below), whose sum is σ = 346384358376357. Its totient is φ = 98966931398304.

The previous prime is 197933890934369. The next prime is 197933890934407. The reversal of 197933890934404 is 404439098339791.

The square root of 197933890934404 is 14068898.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 42333214934404 + 155600676000000 = 6506398^2 + 12474000^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197933890934407) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24620572 + ... + 31655020.

Almost surely, 2^{197933890934404} is an apocalyptic number.

197933890934404 is the 14068898-th square number.

It is an amenable number.

197933890934404 is a deficient number, since it is larger than the sum of its proper divisors (148450467441953).

197933890934404 is an frugal number, since it uses more digits than its factorization.

197933890934404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14068902 (or 7034451 counting only the distinct ones).

The product of its (nonzero) digits is 634894848, while the sum is 73.

The spelling of 197933890934404 in words is "one hundred ninety-seven trillion, nine hundred thirty-three billion, eight hundred ninety million, nine hundred thirty-four thousand, four hundred four".