25434665814 has 8 divisors (see below), whose sum is σ = 50869331640. Its totient is φ = 8478221936.

The previous prime is 25434665813. The next prime is 25434665819. The reversal of 25434665814 is 41856643452.

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

25434665814 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25434665813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2119555479 + ... + 2119555490.

It is an arithmetic number, because the mean of its divisors is an integer number (6358666455).

Almost surely, 2^25434665814 is an apocalyptic number.

25434665814 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.

25434665814 is a wasteful number, since it uses less digits than its factorization.

25434665814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239110974.

The product of its digits is 2764800, while the sum is 48.

The spelling of 25434665814 in words is "twenty-five billion, four hundred thirty-four million, six hundred sixty-five thousand, eight hundred fourteen".