9885673881 has 6 divisors (see below), whose sum is σ = 14279306730. Its totient is φ = 6590449248.

The previous prime is 9885673867. The next prime is 9885673891. The reversal of 9885673881 is 1883765889.

It can be written as a sum of positive squares in only one way, i.e., 6177960000 + 3707713881 = 78600^2 + 60891^2 .

It is not a de Polignac number, because 9885673881 - 2⁶ = 9885673817 is a prime.

It is a super-2 number, since 2×9885673881² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9885673891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 549204096 + ... + 549204113.

It is an arithmetic number, because the mean of its divisors is an integer number (2379884455).

Almost surely, 2^9885673881 is an apocalyptic number.

It is an amenable number.

9885673881 is a deficient number, since it is larger than the sum of its proper divisors (4393632849).

9885673881 is a wasteful number, since it uses less digits than its factorization.

9885673881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098408215 (or 1098408212 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 63.

The square root of 9885673881 is about 99426.7261906978. The cubic root of 9885673881 is about 2146.1929296027.

The spelling of 9885673881 in words is "nine billion, eight hundred eighty-five million, six hundred seventy-three thousand, eight hundred eighty-one".