9875854449481 has 2 divisors, whose sum is σ = 9875854449482. Its totient is φ = 9875854449480.

The previous prime is 9875854449463. The next prime is 9875854449499. The reversal of 9875854449481 is 1849444585789.

It is a balanced prime because it is at equal distance from previous prime (9875854449463) and next prime (9875854449499).

It can be written as a sum of positive squares in only one way, i.e., 7931179575225 + 1944674874256 = 2816235^2 + 1394516^2 .

It is a cyclic number.

It is not a de Polignac number, because 9875854449481 - 2³⁹ = 9326098635593 is a prime.

It is a super-2 number, since 2×9875854449481² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9875854449398 and 9875854449407.

It is not a weakly prime, because it can be changed into another prime (9875854449281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4937927224740 + 4937927224741.

It is an arithmetic number, because the mean of its divisors is an integer number (4937927224741).

Almost surely, 2^{9875854449481} is an apocalyptic number.

It is an amenable number.

9875854449481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9875854449481 is an equidigital number, since it uses as much as digits as its factorization.

9875854449481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1857945600, while the sum is 76.

The spelling of 9875854449481 in words is "nine trillion, eight hundred seventy-five billion, eight hundred fifty-four million, four hundred forty-nine thousand, four hundred eighty-one".