9854532881 has 2 divisors, whose sum is σ = 9854532882. Its totient is φ = 9854532880.

The previous prime is 9854532871. The next prime is 9854532943. The reversal of 9854532881 is 1882354589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9852547600 + 1985281 = 99260^2 + 1409^2 .

It is a cyclic number.

It is not a de Polignac number, because 9854532881 - 2¹⁰ = 9854531857 is a prime.

It is a super-2 number, since 2×9854532881² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9854532871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4927266440 + 4927266441.

It is an arithmetic number, because the mean of its divisors is an integer number (4927266441).

Almost surely, 2^9854532881 is an apocalyptic number.

It is an amenable number.

9854532881 is a deficient number, since it is larger than the sum of its proper divisors (1).

9854532881 is an equidigital number, since it uses as much as digits as its factorization.

9854532881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2764800, while the sum is 53.

The square root of 9854532881 is about 99269.9999043014. Note that the first 4 decimals coincide. The cubic root of 9854532881 is about 2143.9369749500.

The spelling of 9854532881 in words is "nine billion, eight hundred fifty-four million, five hundred thirty-two thousand, eight hundred eighty-one".