18247495572853 has 2 divisors, whose sum is σ = 18247495572854. Its totient is φ = 18247495572852.

The previous prime is 18247495572811. The next prime is 18247495572893. The reversal of 18247495572853 is 35827559474281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15573623073649 + 2673872499204 = 3946343^2 + 1635198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18247495572853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18247495572893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9123747786426 + 9123747786427.

It is an arithmetic number, because the mean of its divisors is an integer number (9123747786427).

Almost surely, 2^{18247495572853} is an apocalyptic number.

It is an amenable number.

18247495572853 is a deficient number, since it is larger than the sum of its proper divisors (1).

18247495572853 is an equidigital number, since it uses as much as digits as its factorization.

18247495572853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376000, while the sum is 70.

The spelling of 18247495572853 in words is "eighteen trillion, two hundred forty-seven billion, four hundred ninety-five million, five hundred seventy-two thousand, eight hundred fifty-three".