9801362881 has 2 divisors, whose sum is σ = 9801362882. Its totient is φ = 9801362880.

The previous prime is 9801362839. The next prime is 9801362911. The reversal of 9801362881 is 1882631089.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6693857856 + 3107505025 = 81816^2 + 55745^2 .

It is a cyclic number.

It is not a de Polignac number, because 9801362881 - 2²⁷ = 9667145153 is a prime.

It is a super-2 number, since 2×9801362881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9801362581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4900681440 + 4900681441.

It is an arithmetic number, because the mean of its divisors is an integer number (4900681441).

Almost surely, 2^9801362881 is an apocalyptic number.

It is an amenable number.

9801362881 is a deficient number, since it is larger than the sum of its proper divisors (1).

9801362881 is an equidigital number, since it uses as much as digits as its factorization.

9801362881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 9801362881 is about 99001.8327153594. The cubic root of 9801362881 is about 2140.0741582739.

The spelling of 9801362881 in words is "nine billion, eight hundred one million, three hundred sixty-two thousand, eight hundred eighty-one".