9233999887081 has 8 divisors (see below), whose sum is σ = 9459260281800. Its totient is φ = 9008741439360.

The previous prime is 9233999887033. The next prime is 9233999887223. The reversal of 9233999887081 is 1807889993329.

It can be written as a sum of positive squares in 4 ways, for example, as 2366010017856 + 6867989869225 = 1538184^2 + 2620685^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9233999887081 is a prime.

It is a super-2 number, since 2×9233999887081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9233999886989 and 9233999887007.

It is not an unprimeable number, because it can be changed into a prime (9233999887681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15226375 + ... + 15821203.

It is an arithmetic number, because the mean of its divisors is an integer number (1182407535225).

Almost surely, 2^{9233999887081} is an apocalyptic number.

It is an amenable number.

9233999887081 is a deficient number, since it is larger than the sum of its proper divisors (225260394719).

9233999887081 is a wasteful number, since it uses less digits than its factorization.

9233999887081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973499.

The product of its (nonzero) digits is 423263232, while the sum is 76.

The spelling of 9233999887081 in words is "nine trillion, two hundred thirty-three billion, nine hundred ninety-nine million, eight hundred eighty-seven thousand, eighty-one".