425871924166 has 16 divisors (see below), whose sum is σ = 692017653600. Its totient is φ = 196556270664.

The previous prime is 425871924139. The next prime is 425871924197. The reversal of 425871924166 is 661429178524.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48456226 + ... + 48465013.

It is an arithmetic number, because the mean of its divisors is an integer number (43251103350).

Almost surely, 2^425871924166 is an apocalyptic number.

425871924166 is a deficient number, since it is larger than the sum of its proper divisors (266145729434).

425871924166 is an equidigital number, since it uses as much as digits as its factorization.

425871924166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96921280 (or 96921254 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 425871924166 in words is "four hundred twenty-five billion, eight hundred seventy-one million, nine hundred twenty-four thousand, one hundred sixty-six".