23145445047 has 8 divisors (see below), whose sum is σ = 31031094640. Its totient is φ = 15345046080.

The previous prime is 23145445033. The next prime is 23145445067. The reversal of 23145445047 is 74054454132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23145445047 - 2¹⁸ = 23145182903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23145444996 and 23145445014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145445007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21312022 + ... + 21313107.

It is an arithmetic number, because the mean of its divisors is an integer number (3878886830).

Almost surely, 2^23145445047 is an apocalyptic number.

23145445047 is a deficient number, since it is larger than the sum of its proper divisors (7885649593).

23145445047 is a wasteful number, since it uses less digits than its factorization.

23145445047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42625313.

The product of its (nonzero) digits is 268800, while the sum is 39.

Adding to 23145445047 its reverse (74054454132), we get a palindrome (97199899179).

The spelling of 23145445047 in words is "twenty-three billion, one hundred forty-five million, four hundred forty-five thousand, forty-seven".