8545874102921 has 2 divisors, whose sum is σ = 8545874102922. Its totient is φ = 8545874102920.

The previous prime is 8545874102833. The next prime is 8545874102947. The reversal of 8545874102921 is 1292014785458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5763533341696 + 2782340761225 = 2400736^2 + 1668035^2 .

It is a cyclic number.

It is not a de Polignac number, because 8545874102921 - 2¹⁴ = 8545874086537 is a prime.

It is not a weakly prime, because it can be changed into another prime (8545874102021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4272937051460 + 4272937051461.

It is an arithmetic number, because the mean of its divisors is an integer number (4272937051461).

Almost surely, 2^{8545874102921} is an apocalyptic number.

It is an amenable number.

8545874102921 is a deficient number, since it is larger than the sum of its proper divisors (1).

8545874102921 is an equidigital number, since it uses as much as digits as its factorization.

8545874102921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 8545874102921 in words is "eight trillion, five hundred forty-five billion, eight hundred seventy-four million, one hundred two thousand, nine hundred twenty-one".