425909420806 has 8 divisors (see below), whose sum is σ = 638866933560. Its totient is φ = 212953776288.

The previous prime is 425909420801. The next prime is 425909420819. The reversal of 425909420806 is 608024909524.

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

It is a self number, because there is not a number n which added to its sum of digits gives 425909420806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425909420801) 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, 520510 + ... + 1059598.

It is an arithmetic number, because the mean of its divisors is an integer number (79858366695).

Almost surely, 2^425909420806 is an apocalyptic number.

425909420806 is a deficient number, since it is larger than the sum of its proper divisors (212957512754).

425909420806 is a wasteful number, since it uses less digits than its factorization.

425909420806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934118.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 425909420806 in words is "four hundred twenty-five billion, nine hundred nine million, four hundred twenty thousand, eight hundred six".