23357647249 has 2 divisors, whose sum is σ = 23357647250. Its totient is φ = 23357647248.

The previous prime is 23357647193. The next prime is 23357647273. The reversal of 23357647249 is 94274675332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21332647249 + 2025000000 = 146057^2 + 45000^2 .

It is a cyclic number.

It is not a de Polignac number, because 23357647249 - 2¹³ = 23357639057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23357647196 and 23357647205.

It is not a weakly prime, because it can be changed into another prime (23357647289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11678823624 + 11678823625.

It is an arithmetic number, because the mean of its divisors is an integer number (11678823625).

Almost surely, 2^23357647249 is an apocalyptic number.

It is an amenable number.

23357647249 is a deficient number, since it is larger than the sum of its proper divisors (1).

23357647249 is an equidigital number, since it uses as much as digits as its factorization.

23357647249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 52.

The spelling of 23357647249 in words is "twenty-three billion, three hundred fifty-seven million, six hundred forty-seven thousand, two hundred forty-nine".