425201806823 has 4 divisors (see below), whose sum is σ = 425203966968. Its totient is φ = 425199646680.

The previous prime is 425201806787. The next prime is 425201806829. The reversal of 425201806823 is 328608102524.

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

It is a cyclic number.

It is not a de Polignac number, because 425201806823 - 2³⁰ = 424128064999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425201806829) 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, 751493 + ... + 1189598.

It is an arithmetic number, because the mean of its divisors is an integer number (106300991742).

Almost surely, 2^425201806823 is an apocalyptic number.

425201806823 is a deficient number, since it is larger than the sum of its proper divisors (2160145).

425201806823 is a wasteful number, since it uses less digits than its factorization.

425201806823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160144.

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 425201806823 in words is "four hundred twenty-five billion, two hundred one million, eight hundred six thousand, eight hundred twenty-three".