8450009638 has 16 divisors (see below), whose sum is σ = 14527245600. Its totient is φ = 3611054016.

The previous prime is 8450009609. The next prime is 8450009651. The reversal of 8450009638 is 8369000548.

It is a junction number, because it is equal to n+sod(n) for n = 8450009594 and 8450009603.

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 7 ways as a sum of consecutive naturals, for example, 859831 + ... + 869602.

It is an arithmetic number, because the mean of its divisors is an integer number (907952850).

Almost surely, 2^8450009638 is an apocalyptic number.

8450009638 is a deficient number, since it is larger than the sum of its proper divisors (6077235962).

8450009638 is a wasteful number, since it uses less digits than its factorization.

8450009638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729791.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 8450009638 is about 91923.9339780451. The cubic root of 8450009638 is about 2036.8188306406.

The spelling of 8450009638 in words is "eight billion, four hundred fifty million, nine thousand, six hundred thirty-eight".