9445557894 has 64 divisors (see below), whose sum is σ = 20209824000. Its totient is φ = 2934534528.

The previous prime is 9445557889. The next prime is 9445557923. The reversal of 9445557894 is 4987555449.

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 31 ways as a sum of consecutive naturals, for example, 1814904 + ... + 1820100.

It is an arithmetic number, because the mean of its divisors is an integer number (315778500).

Almost surely, 2^9445557894 is an apocalyptic number.

9445557894 is an abundant number, since it is smaller than the sum of its proper divisors (10764266106).

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

9445557894 is a wasteful number, since it uses less digits than its factorization.

9445557894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477.

The product of its digits is 36288000, while the sum is 60.

The square root of 9445557894 is about 97188.2600626228. The cubic root of 9445557894 is about 2113.8582994675.

The spelling of 9445557894 in words is "nine billion, four hundred forty-five million, five hundred fifty-seven thousand, eight hundred ninety-four".