8145281344 has 28 divisors (see below), whose sum is σ = 16437254400. Its totient is φ = 4003611008.

The previous prime is 8145281297. The next prime is 8145281357. The reversal of 8145281344 is 4431825418.

It is a junction number, because it is equal to n+sod(n) for n = 8145281297 and 8145281306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074784 + ... + 1082335.

It is an arithmetic number, because the mean of its divisors is an integer number (587044800).

Almost surely, 2^8145281344 is an apocalyptic number.

It is an amenable number.

8145281344 is an abundant number, since it is smaller than the sum of its proper divisors (8291973056).

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

8145281344 is a wasteful number, since it uses less digits than its factorization.

8145281344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157190 (or 2157180 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 8145281344 is about 90251.2124239891. The cubic root of 8145281344 is about 2012.0342221794.

The spelling of 8145281344 in words is "eight billion, one hundred forty-five million, two hundred eighty-one thousand, three hundred forty-four".