22945532642 has 18 divisors (see below), whose sum is σ = 35987537313. Its totient is φ = 10971593952.

The previous prime is 22945532629. The next prime is 22945532669. The reversal of 22945532642 is 24623554922.

It can be written as a sum of positive squares in 2 ways, for example, as 18936236881 + 4009295761 = 137609^2 + 63319^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=107111.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22945532593 and 22945532602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4924778 + ... + 4929434.

Almost surely, 2^22945532642 is an apocalyptic number.

22945532642 is a deficient number, since it is larger than the sum of its proper divisors (13042004671).

22945532642 is an frugal number, since it uses more digits than its factorization.

22945532642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9362 (or 4682 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 44.

The spelling of 22945532642 in words is "twenty-two billion, nine hundred forty-five million, five hundred thirty-two thousand, six hundred forty-two".