196966428481 has 9 divisors (see below), whose sum is σ = 197656292673. Its totient is φ = 196278968340.

The previous prime is 196966428409. The next prime is 196966428539. The reversal of 196966428481 is 184824669691.

The square root of 196966428481 is 443809.

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

It is not a de Polignac number, because 196966428481 - 2⁹ = 196966427969 is a prime.

It is a super-3 number, since 3×196966428481³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196966498481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 168203026 + ... + 168204196.

It is an arithmetic number, because the mean of its divisors is an integer number (21961810297).

Almost surely, 2^196966428481 is an apocalyptic number.

196966428481 is the 443809-th square number.

196966428481 is the 221905-th centered octagonal number.

It is an amenable number.

196966428481 is a deficient number, since it is larger than the sum of its proper divisors (689864192).

196966428481 is an frugal number, since it uses more digits than its factorization.

196966428481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100 (or 1550 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 64.

Multiplying 196966428481 by its sum of digits (64), we get a square (12605851422784 = 3550472²).

The spelling of 196966428481 in words is "one hundred ninety-six billion, nine hundred sixty-six million, four hundred twenty-eight thousand, four hundred eighty-one".