22038028681 has 8 divisors (see below), whose sum is σ = 22752028928. Its totient is φ = 21324222000.

The previous prime is 22038028673. The next prime is 22038028687. The reversal of 22038028681 is 18682083022.

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

It is a cyclic number.

It is not a de Polignac number, because 22038028681 - 2³ = 22038028673 is a prime.

It is a super-2 number, since 2×22038028681² (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 (22038028687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203971 + ... + 292711.

It is an arithmetic number, because the mean of its divisors is an integer number (2844003616).

Almost surely, 2^22038028681 is an apocalyptic number.

It is an amenable number.

22038028681 is a deficient number, since it is larger than the sum of its proper divisors (714000247).

22038028681 is an equidigital number, since it uses as much as digits as its factorization.

22038028681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96783.

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 22038028681 in words is "twenty-two billion, thirty-eight million, twenty-eight thousand, six hundred eighty-one".