9010905638 has 16 divisors (see below), whose sum is σ = 16118887680. Its totient is φ = 3693911496.

The previous prime is 9010905637. The next prime is 9010905647. The reversal of 9010905638 is 8365090109.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 9010905595 and 9010905604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9010905637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13991768 + ... + 13992411.

It is an arithmetic number, because the mean of its divisors is an integer number (1007430480).

Almost surely, 2^9010905638 is an apocalyptic number.

9010905638 is a deficient number, since it is larger than the sum of its proper divisors (7107982042).

9010905638 is a wasteful number, since it uses less digits than its factorization.

9010905638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27984211.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 9010905638 is about 94925.7901626318. The cubic root of 9010905638 is about 2080.9236558199.

The spelling of 9010905638 in words is "nine billion, ten million, nine hundred five thousand, six hundred thirty-eight".