23578831543 has 2 divisors, whose sum is σ = 23578831544. Its totient is φ = 23578831542.

The previous prime is 23578831541. The next prime is 23578831571. The reversal of 23578831543 is 34513887532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23578831543 - 2¹ = 23578831541 is a prime.

It is a super-2 number, since 2×23578831543² (a number of 22 digits) contains 22 as substring.

Together with 23578831541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23578831541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11789415771 + 11789415772.

It is an arithmetic number, because the mean of its divisors is an integer number (11789415772).

Almost surely, 2^23578831543 is an apocalyptic number.

23578831543 is a deficient number, since it is larger than the sum of its proper divisors (1).

23578831543 is an equidigital number, since it uses as much as digits as its factorization.

23578831543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 49.

The spelling of 23578831543 in words is "twenty-three billion, five hundred seventy-eight million, eight hundred thirty-one thousand, five hundred forty-three".