90000448688 has 40 divisors (see below), whose sum is σ = 176126810496. Its totient is φ = 44550604800.

The previous prime is 90000448633. The next prime is 90000448709. The reversal of 90000448688 is 88684400009.

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, 576128 + ... + 715488.

Almost surely, 2^90000448688 is an apocalyptic number.

It is an amenable number.

90000448688 is a deficient number, since it is larger than the sum of its proper divisors (86126361808).

90000448688 is a wasteful number, since it uses less digits than its factorization.

90000448688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139773 (or 139767 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 90000448688 in words is "ninety billion, four hundred forty-eight thousand, six hundred eighty-eight".