25434066423 has 16 divisors (see below), whose sum is σ = 34117424640. Its totient is φ = 16853661696.

The previous prime is 25434066419. The next prime is 25434066439. The reversal of 25434066423 is 32466043452.

It is not a de Polignac number, because 25434066423 - 2² = 25434066419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25434066443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324738 + ... + 395376.

It is an arithmetic number, because the mean of its divisors is an integer number (2132339040).

Almost surely, 2^25434066423 is an apocalyptic number.

25434066423 is a deficient number, since it is larger than the sum of its proper divisors (8683358217).

25434066423 is a wasteful number, since it uses less digits than its factorization.

25434066423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71366.

The product of its (nonzero) digits is 414720, while the sum is 39.

The spelling of 25434066423 in words is "twenty-five billion, four hundred thirty-four million, sixty-six thousand, four hundred twenty-three".