8174945440 has 24 divisors (see below), whose sum is σ = 19313308980. Its totient is φ = 3269978112.

The previous prime is 8174945419. The next prime is 8174945479. The reversal of 8174945440 is 445494718.

It can be written as a sum of positive squares in 2 ways, for example, as 7284281104 + 890664336 = 85348^2 + 29844^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

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, 25546545 + ... + 25546864.

Almost surely, 2^8174945440 is an apocalyptic number.

8174945440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8174945440 is an abundant number, since it is smaller than the sum of its proper divisors (11138363540).

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

8174945440 is a wasteful number, since it uses less digits than its factorization.

8174945440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51093424 (or 51093416 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 8174945440 is about 90415.4048821328. The cubic root of 8174945440 is about 2014.4737887100.

The spelling of 8174945440 in words is "eight billion, one hundred seventy-four million, nine hundred forty-five thousand, four hundred forty".