94443632640 has 384 divisors, whose sum is σ = 383685120000. Its totient is φ = 21586673664.

The previous prime is 94443632627. The next prime is 94443632663. The reversal of 94443632640 is 4623634449.

It is a happy number.

94443632640 is a `hidden beast` number, since 9 + 4 + 4 + 4 + 3 + 632 + 6 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1910961 + ... + 1959759.

It is an arithmetic number, because the mean of its divisors is an integer number (999180000).

Almost surely, 2^94443632640 is an apocalyptic number.

94443632640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 94443632640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191842560000).

94443632640 is an abundant number, since it is smaller than the sum of its proper divisors (289241487360).

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

94443632640 is a wasteful number, since it uses less digits than its factorization.

94443632640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48842 (or 48816 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 94443632640 in words is "ninety-four billion, four hundred forty-three million, six hundred thirty-two thousand, six hundred forty".