35713872578821 has 2 divisors, whose sum is σ = 35713872578822. Its totient is φ = 35713872578820.

The previous prime is 35713872578807. The next prime is 35713872578851. The reversal of 35713872578821 is 12887527831753.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28612121940900 + 7101750637921 = 5349030^2 + 2664911^2 .

It is a cyclic number.

It is not a de Polignac number, because 35713872578821 - 2¹⁹ = 35713872054533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35713872578851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17856936289410 + 17856936289411.

It is an arithmetic number, because the mean of its divisors is an integer number (17856936289411).

Almost surely, 2^{35713872578821} is an apocalyptic number.

It is an amenable number.

35713872578821 is a deficient number, since it is larger than the sum of its proper divisors (1).

35713872578821 is an equidigital number, since it uses as much as digits as its factorization.

35713872578821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158054400, while the sum is 67.

The spelling of 35713872578821 in words is "thirty-five trillion, seven hundred thirteen billion, eight hundred seventy-two million, five hundred seventy-eight thousand, eight hundred twenty-one".