196781845364 has 24 divisors (see below), whose sum is σ = 379903416648. Its totient is φ = 88607208960.

The previous prime is 196781845363. The next prime is 196781845387. The reversal of 196781845364 is 463548187691.

It can be written as a sum of positive squares in 4 ways, for example, as 392832400 + 196389012964 = 19820^2 + 443158^2 .

It is a super-2 number, since 2×196781845364² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 196781845297 and 196781845306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196781845363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46147457 + ... + 46151720.

It is an arithmetic number, because the mean of its divisors is an integer number (15829309027).

Almost surely, 2^196781845364 is an apocalyptic number.

It is an amenable number.

196781845364 is a deficient number, since it is larger than the sum of its proper divisors (183121571284).

196781845364 is a wasteful number, since it uses less digits than its factorization.

196781845364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92299235 (or 92299233 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 62.

The spelling of 196781845364 in words is "one hundred ninety-six billion, seven hundred eighty-one million, eight hundred forty-five thousand, three hundred sixty-four".