1874140782197 has 2 divisors, whose sum is σ = 1874140782198. Its totient is φ = 1874140782196.

The previous prime is 1874140782187. The next prime is 1874140782263. The reversal of 1874140782197 is 7912870414781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 956394026116 + 917746756081 = 977954^2 + 957991^2 .

It is a cyclic number.

It is not a de Polignac number, because 1874140782197 - 2¹² = 1874140778101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1874140782187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937070391098 + 937070391099.

It is an arithmetic number, because the mean of its divisors is an integer number (937070391099).

Almost surely, 2^{1874140782197} is an apocalyptic number.

It is an amenable number.

1874140782197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1874140782197 is an equidigital number, since it uses as much as digits as its factorization.

1874140782197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6322176, while the sum is 59.

The spelling of 1874140782197 in words is "one trillion, eight hundred seventy-four billion, one hundred forty million, seven hundred eighty-two thousand, one hundred ninety-seven".