196247781047 has 2 divisors, whose sum is σ = 196247781048. Its totient is φ = 196247781046.

The previous prime is 196247781019. The next prime is 196247781151. The reversal of 196247781047 is 740187742691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196247781047 - 2¹² = 196247776951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196247780983 and 196247781001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196247781007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98123890523 + 98123890524.

It is an arithmetic number, because the mean of its divisors is an integer number (98123890524).

Almost surely, 2^196247781047 is an apocalyptic number.

196247781047 is a deficient number, since it is larger than the sum of its proper divisors (1).

196247781047 is an equidigital number, since it uses as much as digits as its factorization.

196247781047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4741632, while the sum is 56.

The spelling of 196247781047 in words is "one hundred ninety-six billion, two hundred forty-seven million, seven hundred eighty-one thousand, forty-seven".