23874487543 has 2 divisors, whose sum is σ = 23874487544. Its totient is φ = 23874487542.

The previous prime is 23874487471. The next prime is 23874487561. The reversal of 23874487543 is 34578447832.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23874487543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23874487573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11937243771 + 11937243772.

It is an arithmetic number, because the mean of its divisors is an integer number (11937243772).

Almost surely, 2^23874487543 is an apocalyptic number.

23874487543 is a deficient number, since it is larger than the sum of its proper divisors (1).

23874487543 is an equidigital number, since it uses as much as digits as its factorization.

23874487543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18063360, while the sum is 55.

The spelling of 23874487543 in words is "twenty-three billion, eight hundred seventy-four million, four hundred eighty-seven thousand, five hundred forty-three".