8427021070748 has 72 divisors (see below), whose sum is σ = 17349533000352. Its totient is φ = 3570703589376.

The previous prime is 8427021070709. The next prime is 8427021070751. The reversal of 8427021070748 is 8470701207248.

It is a junction number, because it is equal to n+sod(n) for n = 8427021070696 and 8427021070705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18463340 + ... + 18914252.

It is an arithmetic number, because the mean of its divisors is an integer number (240965736116).

Almost surely, 2^{8427021070748} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8427021070748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8674766500176).

8427021070748 is an abundant number, since it is smaller than the sum of its proper divisors (8922511929604).

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

8427021070748 is a wasteful number, since it uses less digits than its factorization.

8427021070748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452011 (or 452002 counting only the distinct ones).

The product of its (nonzero) digits is 1404928, while the sum is 50.

The spelling of 8427021070748 in words is "eight trillion, four hundred twenty-seven billion, twenty-one million, seventy thousand, seven hundred forty-eight".