23049186409 has 2 divisors, whose sum is σ = 23049186410. Its totient is φ = 23049186408.

The previous prime is 23049186389. The next prime is 23049186437. The reversal of 23049186409 is 90468194032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19044828009 + 4004358400 = 138003^2 + 63280^2 .

It is a cyclic number.

It is not a de Polignac number, because 23049186409 - 2¹⁹ = 23048662121 is a prime.

It is not a weakly prime, because it can be changed into another prime (23049186509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11524593204 + 11524593205.

It is an arithmetic number, because the mean of its divisors is an integer number (11524593205).

Almost surely, 2^23049186409 is an apocalyptic number.

It is an amenable number.

23049186409 is a deficient number, since it is larger than the sum of its proper divisors (1).

23049186409 is an equidigital number, since it uses as much as digits as its factorization.

23049186409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 23049186409 in words is "twenty-three billion, forty-nine million, one hundred eighty-six thousand, four hundred nine".