8487645044 has 12 divisors (see below), whose sum is σ = 15254821764. Its totient is φ = 4129124544.

The previous prime is 8487645043. The next prime is 8487645073. The reversal of 8487645044 is 4405467848.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7839331600 + 648313444 = 88540^2 + 25462^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8487644983 and 8487645001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8487645043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28674329 + ... + 28674624.

It is an arithmetic number, because the mean of its divisors is an integer number (1271235147).

Almost surely, 2^8487645044 is an apocalyptic number.

It is an amenable number.

8487645044 is a deficient number, since it is larger than the sum of its proper divisors (6767176720).

8487645044 is a wasteful number, since it uses less digits than its factorization.

8487645044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57348994 (or 57348992 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 50.

The square root of 8487645044 is about 92128.4160506410. The cubic root of 8487645044 is about 2039.8382740560.

The spelling of 8487645044 in words is "eight billion, four hundred eighty-seven million, six hundred forty-five thousand, forty-four".