23471471519 has 4 divisors (see below), whose sum is σ = 23486170344. Its totient is φ = 23456772696.

The previous prime is 23471471417. The next prime is 23471471537. The reversal of 23471471519 is 91517417432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23471471519 is a prime.

It is a super-2 number, since 2×23471471519² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23471471519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23471471579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7347017 + ... + 7350210.

It is an arithmetic number, because the mean of its divisors is an integer number (5871542586).

Almost surely, 2^23471471519 is an apocalyptic number.

23471471519 is a deficient number, since it is larger than the sum of its proper divisors (14698825).

23471471519 is a wasteful number, since it uses less digits than its factorization.

23471471519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14698824.

The product of its digits is 211680, while the sum is 44.

The spelling of 23471471519 in words is "twenty-three billion, four hundred seventy-one million, four hundred seventy-one thousand, five hundred nineteen".