23657102173657 has 2 divisors, whose sum is σ = 23657102173658. Its totient is φ = 23657102173656.

The previous prime is 23657102173643. The next prime is 23657102173697. The reversal of 23657102173657 is 75637120175632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23640804076761 + 16298096896 = 4862181^2 + 127664^2 .

It is a cyclic number.

It is not a de Polignac number, because 23657102173657 - 2¹⁹ = 23657101649369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23657102173598 and 23657102173607.

It is not a weakly prime, because it can be changed into another prime (23657102173637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11828551086828 + 11828551086829.

It is an arithmetic number, because the mean of its divisors is an integer number (11828551086829).

Almost surely, 2^{23657102173657} is an apocalyptic number.

It is an amenable number.

23657102173657 is a deficient number, since it is larger than the sum of its proper divisors (1).

23657102173657 is an equidigital number, since it uses as much as digits as its factorization.

23657102173657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11113200, while the sum is 55.

The spelling of 23657102173657 in words is "twenty-three trillion, six hundred fifty-seven billion, one hundred two million, one hundred seventy-three thousand, six hundred fifty-seven".