23502327645145 has 4 divisors (see below), whose sum is σ = 28202793174180. Its totient is φ = 18801862116112.

The previous prime is 23502327645101. The next prime is 23502327645149. The reversal of 23502327645145 is 54154672320532.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8310581964864 + 15191745680281 = 2882808^2 + 3897659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23502327645145 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23502327645149) 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, 2350232764510 + ... + 2350232764519.

It is an arithmetic number, because the mean of its divisors is an integer number (7050698293545).

Almost surely, 2^{23502327645145} is an apocalyptic number.

It is an amenable number.

23502327645145 is a deficient number, since it is larger than the sum of its proper divisors (4700465529035).

23502327645145 is an equidigital number, since it uses as much as digits as its factorization.

23502327645145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700465529034.

The product of its (nonzero) digits is 6048000, while the sum is 49.

Adding to 23502327645145 its reverse (54154672320532), we get a palindrome (77656999965677).

The spelling of 23502327645145 in words is "twenty-three trillion, five hundred two billion, three hundred twenty-seven million, six hundred forty-five thousand, one hundred forty-five".