23198651573 has 2 divisors, whose sum is σ = 23198651574. Its totient is φ = 23198651572.

The previous prime is 23198651549. The next prime is 23198651603. The reversal of 23198651573 is 37515689132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12990984484 + 10207667089 = 113978^2 + 101033^2 .

It is a cyclic number.

It is not a de Polignac number, because 23198651573 - 2¹⁰ = 23198650549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23198654573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11599325786 + 11599325787.

It is an arithmetic number, because the mean of its divisors is an integer number (11599325787).

Almost surely, 2^23198651573 is an apocalyptic number.

It is an amenable number.

23198651573 is a deficient number, since it is larger than the sum of its proper divisors (1).

23198651573 is an equidigital number, since it uses as much as digits as its factorization.

23198651573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 50.

The spelling of 23198651573 in words is "twenty-three billion, one hundred ninety-eight million, six hundred fifty-one thousand, five hundred seventy-three".