23017908745 has 16 divisors (see below), whose sum is σ = 30307474512. Its totient is φ = 16677123840.

The previous prime is 23017908731. The next prime is 23017908779. The reversal of 23017908745 is 54780971032.

It can be written as a sum of positive squares in 8 ways, for example, as 3299008969 + 19718899776 = 57437^2 + 140424^2 .

It is not a de Polignac number, because 23017908745 - 2¹¹ = 23017906697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23017908695 and 23017908704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3337326 + ... + 3344215.

It is an arithmetic number, because the mean of its divisors is an integer number (1894217157).

Almost surely, 2^23017908745 is an apocalyptic number.

It is an amenable number.

23017908745 is a deficient number, since it is larger than the sum of its proper divisors (7289565767).

23017908745 is a wasteful number, since it uses less digits than its factorization.

23017908745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681612.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 23017908745 in words is "twenty-three billion, seventeen million, nine hundred eight thousand, seven hundred forty-five".