25343204064345 has 24 divisors (see below), whose sum is σ = 43928469708552. Its totient is φ = 13516298784000.

The previous prime is 25343204064259. The next prime is 25343204064349. The reversal of 25343204064345 is 54346040234352.

25343204064345 is a `hidden beast` number, since 2 + 5 + 3 + 4 + 3 + 204 + 0 + 6 + 434 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 87272385561 + 25255931678784 = 295419^2 + 5025528^2 .

It is not a de Polignac number, because 25343204064345 - 2⁹ = 25343204063833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 25343204064345.

It is not an unprimeable number, because it can be changed into a prime (25343204064349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6916645 + ... + 9926045.

It is an arithmetic number, because the mean of its divisors is an integer number (1830352904523).

Almost surely, 2^{25343204064345} is an apocalyptic number.

It is an amenable number.

25343204064345 is a deficient number, since it is larger than the sum of its proper divisors (18585265644207).

25343204064345 is a wasteful number, since it uses less digits than its factorization.

25343204064345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196553 (or 3196550 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 45.

Adding to 25343204064345 its reverse (54346040234352), we get a palindrome (79689244298697).

The spelling of 25343204064345 in words is "twenty-five trillion, three hundred forty-three billion, two hundred four million, sixty-four thousand, three hundred forty-five".