23485513847 has 4 divisors (see below), whose sum is σ = 23492849400. Its totient is φ = 23478178296.

The previous prime is 23485513817. The next prime is 23485513861. The reversal of 23485513847 is 74831558432.

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 23485513847 - 2⁶ = 23485513783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23485513795 and 23485513804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23485513817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3662972 + ... + 3669377.

It is an arithmetic number, because the mean of its divisors is an integer number (5873212350).

Almost surely, 2^23485513847 is an apocalyptic number.

23485513847 is a deficient number, since it is larger than the sum of its proper divisors (7335553).

23485513847 is an equidigital number, since it uses as much as digits as its factorization.

23485513847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7335552.

The product of its digits is 3225600, while the sum is 50.

The spelling of 23485513847 in words is "twenty-three billion, four hundred eighty-five million, five hundred thirteen thousand, eight hundred forty-seven".