23746606561 has 2 divisors, whose sum is σ = 23746606562. Its totient is φ = 23746606560.

The previous prime is 23746606523. The next prime is 23746606571. The reversal of 23746606561 is 16560664732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16428830625 + 7317775936 = 128175^2 + 85544^2 .

It is a cyclic number.

It is not a de Polignac number, because 23746606561 - 2¹⁵ = 23746573793 is a prime.

It is not a weakly prime, because it can be changed into another prime (23746606571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11873303280 + 11873303281.

It is an arithmetic number, because the mean of its divisors is an integer number (11873303281).

Almost surely, 2^23746606561 is an apocalyptic number.

It is an amenable number.

23746606561 is a deficient number, since it is larger than the sum of its proper divisors (1).

23746606561 is an equidigital number, since it uses as much as digits as its factorization.

23746606561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 23746606561 in words is "twenty-three billion, seven hundred forty-six million, six hundred six thousand, five hundred sixty-one".