947432552640 has 896 divisors, whose sum is σ = 3694332837888. Its totient is φ = 201016442880.

The previous prime is 947432552593. The next prime is 947432552641. The reversal of 947432552640 is 46255234749.

It is not an unprimeable number, because it can be changed into a prime (947432552641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1945446477 + ... + 1945446963.

It is an arithmetic number, because the mean of its divisors is an integer number (4123139328).

Almost surely, 2^947432552640 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 947432552640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1847166418944).

947432552640 is an abundant number, since it is smaller than the sum of its proper divisors (2746900285248).

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

947432552640 is a wasteful number, since it uses less digits than its factorization.

947432552640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 947432552640 in words is "nine hundred forty-seven billion, four hundred thirty-two million, five hundred fifty-two thousand, six hundred forty".