23934806543 has 2 divisors, whose sum is σ = 23934806544. Its totient is φ = 23934806542.

The previous prime is 23934806513. The next prime is 23934806561. The reversal of 23934806543 is 34560843932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23934806543 - 2⁶ = 23934806479 is a prime.

It is a super-2 number, since 2×23934806543² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23934806513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11967403271 + 11967403272.

It is an arithmetic number, because the mean of its divisors is an integer number (11967403272).

Almost surely, 2^23934806543 is an apocalyptic number.

23934806543 is a deficient number, since it is larger than the sum of its proper divisors (1).

23934806543 is an equidigital number, since it uses as much as digits as its factorization.

23934806543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 23934806543 in words is "twenty-three billion, nine hundred thirty-four million, eight hundred six thousand, five hundred forty-three".