23638816471 has 2 divisors, whose sum is σ = 23638816472. Its totient is φ = 23638816470.

The previous prime is 23638816423. The next prime is 23638816493. The reversal of 23638816471 is 17461883632.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23638816471 - 2⁷ = 23638816343 is a prime.

It is a super-3 number, since 3×23638816471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23638816171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11819408235 + 11819408236.

It is an arithmetic number, because the mean of its divisors is an integer number (11819408236).

Almost surely, 2^23638816471 is an apocalyptic number.

23638816471 is a deficient number, since it is larger than the sum of its proper divisors (1).

23638816471 is an equidigital number, since it uses as much as digits as its factorization.

23638816471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 49.

The spelling of 23638816471 in words is "twenty-three billion, six hundred thirty-eight million, eight hundred sixteen thousand, four hundred seventy-one".