23947709471 has 4 divisors (see below), whose sum is σ = 27368810832. Its totient is φ = 20526608112.

The previous prime is 23947709441. The next prime is 23947709507. The reversal of 23947709471 is 17490774932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23947709471 - 2²⁶ = 23880600607 is a prime.

It is a super-3 number, since 3×23947709471³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23947709441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710550670 + ... + 1710550683.

It is an arithmetic number, because the mean of its divisors is an integer number (6842202708).

Almost surely, 2^23947709471 is an apocalyptic number.

23947709471 is a deficient number, since it is larger than the sum of its proper divisors (3421101361).

23947709471 is an equidigital number, since it uses as much as digits as its factorization.

23947709471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421101360.

The product of its (nonzero) digits is 2667168, while the sum is 53.

The spelling of 23947709471 in words is "twenty-three billion, nine hundred forty-seven million, seven hundred nine thousand, four hundred seventy-one".