47044442000 has 80 divisors (see below), whose sum is σ = 113872382832. Its totient is φ = 18798105600.

The previous prime is 47044441987. The next prime is 47044442009. The reversal of 47044442000 is 24444074.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 17390224384 + 29654217616 = 131872^2 + 172204^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (47044442009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1982204 + ... + 2005796.

Almost surely, 2^47044442000 is an apocalyptic number.

47044442000 is a gapful number since it is divisible by the number (40) 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 47044442000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56936191416).

47044442000 is an abundant number, since it is smaller than the sum of its proper divisors (66827940832).

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

47044442000 is a wasteful number, since it uses less digits than its factorization.

47044442000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24613 (or 24597 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 29.

Adding to 47044442000 its reverse (24444074), we get a palindrome (47068886074).

The spelling of 47044442000 in words is "forty-seven billion, forty-four million, four hundred forty-two thousand".