420448879659 has 8 divisors (see below), whose sum is σ = 560899748752. Its totient is φ = 280148631840.

The previous prime is 420448879651. The next prime is 420448879727. The reversal of 420448879659 is 956978844024.

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

It is not a de Polignac number, because 420448879659 - 2³ = 420448879651 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 420448879659.

It is not an unprimeable number, because it can be changed into a prime (420448879651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37648804 + ... + 37659969.

It is an arithmetic number, because the mean of its divisors is an integer number (70112468594).

Almost surely, 2^420448879659 is an apocalyptic number.

420448879659 is a deficient number, since it is larger than the sum of its proper divisors (140450869093).

420448879659 is a wasteful number, since it uses less digits than its factorization.

420448879659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75310637.

The product of its (nonzero) digits is 139345920, while the sum is 66.

The spelling of 420448879659 in words is "four hundred twenty billion, four hundred forty-eight million, eight hundred seventy-nine thousand, six hundred fifty-nine".