9992884681 has 48 divisors (see below), whose sum is σ = 12132844416. Its totient is φ = 8160590592.

The previous prime is 9992884651. The next prime is 9992884697. The reversal of 9992884681 is 1864882999.

It is not a de Polignac number, because 9992884681 - 2⁹ = 9992884169 is a prime.

It is a super-2 number, since 2×9992884681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9992884621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4640301 + ... + 4642453.

It is an arithmetic number, because the mean of its divisors is an integer number (252767592).

Almost surely, 2^9992884681 is an apocalyptic number.

It is an amenable number.

9992884681 is a deficient number, since it is larger than the sum of its proper divisors (2139959735).

9992884681 is a wasteful number, since it uses less digits than its factorization.

9992884681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270 (or 2251 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 64.

The square root of 9992884681 is about 99964.4170742770. The cubic root of 9992884681 is about 2153.9235857876.

The spelling of 9992884681 in words is "nine billion, nine hundred ninety-two million, eight hundred eighty-four thousand, six hundred eighty-one".