25640455105614 has 8 divisors (see below), whose sum is σ = 51280910211240. Its totient is φ = 8546818368536.

The previous prime is 25640455105591. The next prime is 25640455105673. The reversal of 25640455105614 is 41650155404652.

It is a happy number.

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

25640455105614 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2136704592129 + ... + 2136704592140.

It is an arithmetic number, because the mean of its divisors is an integer number (6410113776405).

Almost surely, 2^{25640455105614} is an apocalyptic number.

25640455105614 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25640455105614 is a wasteful number, since it uses less digits than its factorization.

25640455105614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273409184274.

The product of its (nonzero) digits is 2880000, while the sum is 48.

The spelling of 25640455105614 in words is "twenty-five trillion, six hundred forty billion, four hundred fifty-five million, one hundred five thousand, six hundred fourteen".