8420815403436 has 48 divisors (see below), whose sum is σ = 19993925306880. Its totient is φ = 2757660603840.

The previous prime is 8420815403419. The next prime is 8420815403491. The reversal of 8420815403436 is 6343045180248.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2520996 + ... + 4816331.

It is an arithmetic number, because the mean of its divisors is an integer number (416540110560).

Almost surely, 2^{8420815403436} is an apocalyptic number.

It is an amenable number.

8420815403436 is an abundant number, since it is smaller than the sum of its proper divisors (11573109903444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8420815403436 is a wasteful number, since it uses less digits than its factorization.

8420815403436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7339014 (or 7339012 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 8420815403436 in words is "eight trillion, four hundred twenty billion, eight hundred fifteen million, four hundred three thousand, four hundred thirty-six".