47009488640 has 216 divisors, whose sum is σ = 117164491920. Its totient is φ = 18069848064.

The previous prime is 47009488639. The next prime is 47009488649. The reversal of 47009488640 is 4688490074.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47009488649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243572384 + ... + 243572576.

Almost surely, 2^47009488640 is an apocalyptic number.

47009488640 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 47009488640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58582245960).

47009488640 is an abundant number, since it is smaller than the sum of its proper divisors (70155003280).

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

47009488640 is a wasteful number, since it uses less digits than its factorization.

47009488640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 47009488640 in words is "forty-seven billion, nine million, four hundred eighty-eight thousand, six hundred forty".