8444546505 has 24 divisors (see below), whose sum is σ = 14801684040. Its totient is φ = 4453152000.

The previous prime is 8444546501. The next prime is 8444546507. The reversal of 8444546505 is 5056454448.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 846286281 + 7598260224 = 29091^2 + 87168^2 .

It is not a de Polignac number, because 8444546505 - 2² = 8444546501 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (8444546501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1050246 + ... + 1058255.

It is an arithmetic number, because the mean of its divisors is an integer number (616736835).

Almost surely, 2^8444546505 is an apocalyptic number.

It is an amenable number.

8444546505 is a deficient number, since it is larger than the sum of its proper divisors (6357137535).

8444546505 is a wasteful number, since it uses less digits than its factorization.

8444546505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108601 (or 2108598 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 45.

The square root of 8444546505 is about 91894.2136644087. The cubic root of 8444546505 is about 2036.3797853395.

The spelling of 8444546505 in words is "eight billion, four hundred forty-four million, five hundred forty-six thousand, five hundred five".