425508828859 has 4 divisors (see below), whose sum is σ = 425513411640. Its totient is φ = 425504246080.

The previous prime is 425508828821. The next prime is 425508828893. The reversal of 425508828859 is 958828805524.

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 425508828859 - 2³⁵ = 391149090491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425508828859.

It is not an unprimeable number, because it can be changed into a prime (425508820859) 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, 2149174 + ... + 2338795.

It is an arithmetic number, because the mean of its divisors is an integer number (106378352910).

Almost surely, 2^425508828859 is an apocalyptic number.

425508828859 is a deficient number, since it is larger than the sum of its proper divisors (4582781).

425508828859 is an equidigital number, since it uses as much as digits as its factorization.

425508828859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582780.

The product of its (nonzero) digits is 73728000, while the sum is 64.

The spelling of 425508828859 in words is "four hundred twenty-five billion, five hundred eight million, eight hundred twenty-eight thousand, eight hundred fifty-nine".