23537561471 has 2 divisors, whose sum is σ = 23537561472. Its totient is φ = 23537561470.

The previous prime is 23537561393. The next prime is 23537561473. The reversal of 23537561471 is 17416573532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23537561471 is a prime.

It is a super-3 number, since 3×23537561471³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 23537561473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23537561473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11768780735 + 11768780736.

It is an arithmetic number, because the mean of its divisors is an integer number (11768780736).

Almost surely, 2^23537561471 is an apocalyptic number.

23537561471 is a deficient number, since it is larger than the sum of its proper divisors (1).

23537561471 is an equidigital number, since it uses as much as digits as its factorization.

23537561471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 44.

The spelling of 23537561471 in words is "twenty-three billion, five hundred thirty-seven million, five hundred sixty-one thousand, four hundred seventy-one".