1974317250811 has 2 divisors, whose sum is σ = 1974317250812. Its totient is φ = 1974317250810.

The previous prime is 1974317250779. The next prime is 1974317250817. The reversal of 1974317250811 is 1180527134791.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1974317250811 - 2⁵ = 1974317250779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1974317250817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987158625405 + 987158625406.

It is an arithmetic number, because the mean of its divisors is an integer number (987158625406).

Almost surely, 2^{1974317250811} is an apocalyptic number.

1974317250811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974317250811 is an equidigital number, since it uses as much as digits as its factorization.

1974317250811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 49.

The spelling of 1974317250811 in words is "one trillion, nine hundred seventy-four billion, three hundred seventeen million, two hundred fifty thousand, eight hundred eleven".