196471780704 has 144 divisors (see below), whose sum is σ = 574722059184. Its totient is φ = 63640396800.

The previous prime is 196471780657. The next prime is 196471780711. The reversal of 196471780704 is 407087174691.

It is a happy number.

196471780704 is a `hidden beast` number, since 1 + 96 + 471 + 7 + 80 + 7 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×196471780704² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1390774 + ... + 1525514.

It is an arithmetic number, because the mean of its divisors is an integer number (3991125411).

Almost surely, 2^196471780704 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 196471780704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287361029592).

196471780704 is an abundant number, since it is smaller than the sum of its proper divisors (378250278480).

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

196471780704 is a wasteful number, since it uses less digits than its factorization.

196471780704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134901 (or 134890 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The spelling of 196471780704 in words is "one hundred ninety-six billion, four hundred seventy-one million, seven hundred eighty thousand, seven hundred four".