23009994757 has 2 divisors, whose sum is σ = 23009994758. Its totient is φ = 23009994756.

The previous prime is 23009994739. The next prime is 23009994823. The reversal of 23009994757 is 75749990032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13809540196 + 9200454561 = 117514^2 + 95919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23009994757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23009994698 and 23009994707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23009997757) 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 as a sum of consecutive naturals, namely, 11504997378 + 11504997379.

It is an arithmetic number, because the mean of its divisors is an integer number (11504997379).

Almost surely, 2^23009994757 is an apocalyptic number.

It is an amenable number.

23009994757 is a deficient number, since it is larger than the sum of its proper divisors (1).

23009994757 is an equidigital number, since it uses as much as digits as its factorization.

23009994757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4286520, while the sum is 55.

The spelling of 23009994757 in words is "twenty-three billion, nine million, nine hundred ninety-four thousand, seven hundred fifty-seven".