47440217952 has 144 divisors (see below), whose sum is σ = 144653221440. Its totient is φ = 14694690816.

The previous prime is 47440217947. The next prime is 47440217971. The reversal of 47440217952 is 25971204474.

47440217952 is a `hidden beast` number, since 4 + 74 + 402 + 179 + 5 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 47440217898 and 47440217907.

It is a congruent number.

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, 325458 + ... + 448110.

It is an arithmetic number, because the mean of its divisors is an integer number (1004536260).

Almost surely, 2^47440217952 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 47440217952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72326610720).

47440217952 is an abundant number, since it is smaller than the sum of its proper divisors (97213003488).

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

47440217952 is a wasteful number, since it uses less digits than its factorization.

47440217952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122765 (or 122754 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 47440217952 in words is "forty-seven billion, four hundred forty million, two hundred seventeen thousand, nine hundred fifty-two".