47507931768 has 128 divisors (see below), whose sum is σ = 135047577600. Its totient is φ = 13796438400.

The previous prime is 47507931739. The next prime is 47507931769. The reversal of 47507931768 is 86713970574.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47507931769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 814773 + ... + 871131.

It is an arithmetic number, because the mean of its divisors is an integer number (1055059200).

Almost surely, 2^47507931768 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 47507931768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67523788800).

47507931768 is an abundant number, since it is smaller than the sum of its proper divisors (87539645832).

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

47507931768 is a wasteful number, since it uses less digits than its factorization.

47507931768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56513 (or 56509 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 57.

The spelling of 47507931768 in words is "forty-seven billion, five hundred seven million, nine hundred thirty-one thousand, seven hundred sixty-eight".