8281072485 has 24 divisors (see below), whose sum is σ = 16404410880. Its totient is φ = 3785632992.

The previous prime is 8281072427. The next prime is 8281072511. The reversal of 8281072485 is 5842701828.

It is a happy number.

It is not a de Polignac number, because 8281072485 - 2⁷ = 8281072357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8281072485.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13144245 + ... + 13144874.

It is an arithmetic number, because the mean of its divisors is an integer number (683517120).

Almost surely, 2^8281072485 is an apocalyptic number.

It is an amenable number.

8281072485 is a deficient number, since it is larger than the sum of its proper divisors (8123338395).

8281072485 is a wasteful number, since it uses less digits than its factorization.

8281072485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26289137 (or 26289134 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The square root of 8281072485 is about 91000.3982683592. The cubic root of 8281072485 is about 2023.1536274807.

The spelling of 8281072485 in words is "eight billion, two hundred eighty-one million, seventy-two thousand, four hundred eighty-five".