426671657662 has 8 divisors (see below), whose sum is σ = 640032988392. Its totient is φ = 213327328200.

The previous prime is 426671657639. The next prime is 426671657681. The reversal of 426671657662 is 266756176624.

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

It is a junction number, because it is equal to n+sod(n) for n = 426671657597 and 426671657606.

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 3 ways as a sum of consecutive naturals, for example, 4187389 + ... + 4288072.

It is an arithmetic number, because the mean of its divisors is an integer number (80004123549).

Almost surely, 2^426671657662 is an apocalyptic number.

426671657662 is a deficient number, since it is larger than the sum of its proper divisors (213361330730).

426671657662 is a wasteful number, since it uses less digits than its factorization.

426671657662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500634.

The product of its digits is 30481920, while the sum is 58.

The spelling of 426671657662 in words is "four hundred twenty-six billion, six hundred seventy-one million, six hundred fifty-seven thousand, six hundred sixty-two".