1881764713 has 2 divisors, whose sum is σ = 1881764714. Its totient is φ = 1881764712.

The previous prime is 1881764701. The next prime is 1881764767. The reversal of 1881764713 is 3174671881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1756615744 + 125148969 = 41912^2 + 11187^2 .

It is a cyclic number.

It is not a de Polignac number, because 1881764713 - 2¹⁷ = 1881633641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1881764513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 940882356 + 940882357.

It is an arithmetic number, because the mean of its divisors is an integer number (940882357).

Almost surely, 2^1881764713 is an apocalyptic number.

It is an amenable number.

1881764713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1881764713 is an equidigital number, since it uses as much as digits as its factorization.

1881764713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 46.

The square root of 1881764713 is about 43379.3120392659. The cubic root of 1881764713 is about 1234.5872099208.

The spelling of 1881764713 in words is "one billion, eight hundred eighty-one million, seven hundred sixty-four thousand, seven hundred thirteen".