47147648544 has 144 divisors (see below), whose sum is σ = 135039864960. Its totient is φ = 15603356160.

The previous prime is 47147648519. The next prime is 47147648551. The reversal of 47147648544 is 44584674174.

47147648544 is a `hidden beast` number, since 47 + 14 + 7 + 6 + 48 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28977459 + ... + 28979085.

It is an arithmetic number, because the mean of its divisors is an integer number (937776840).

Almost surely, 2^47147648544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47147648544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67519932480).

47147648544 is an abundant number, since it is smaller than the sum of its proper divisors (87892216416).

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

47147648544 is a wasteful number, since it uses less digits than its factorization.

47147648544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303 (or 2292 counting only the distinct ones).

The product of its digits is 12042240, while the sum is 54.

The spelling of 47147648544 in words is "forty-seven billion, one hundred forty-seven million, six hundred forty-eight thousand, five hundred forty-four".