23638816297 has 2 divisors, whose sum is σ = 23638816298. Its totient is φ = 23638816296.

The previous prime is 23638816261. The next prime is 23638816303. The reversal of 23638816297 is 79261883632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22795262361 + 843553936 = 150981^2 + 29044^2 .

It is a cyclic number.

It is not a de Polignac number, because 23638816297 - 2⁷ = 23638816169 is a prime.

It is not a weakly prime, because it can be changed into another prime (23638816247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11819408148 + 11819408149.

It is an arithmetic number, because the mean of its divisors is an integer number (11819408149).

Almost surely, 2^23638816297 is an apocalyptic number.

It is an amenable number.

23638816297 is a deficient number, since it is larger than the sum of its proper divisors (1).

23638816297 is an equidigital number, since it uses as much as digits as its factorization.

23638816297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 55.

The spelling of 23638816297 in words is "twenty-three billion, six hundred thirty-eight million, eight hundred sixteen thousand, two hundred ninety-seven".