47135521068 has 24 divisors (see below), whose sum is σ = 110000486400. Its totient is φ = 15709325520.

The previous prime is 47135521051. The next prime is 47135521127. The reversal of 47135521068 is 86012553174.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235468 + ... + 386931.

It is an arithmetic number, because the mean of its divisors is an integer number (4583353600).

Almost surely, 2^47135521068 is an apocalyptic number.

It is an amenable number.

47135521068 is an abundant number, since it is smaller than the sum of its proper divisors (62864965332).

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

47135521068 is a wasteful number, since it uses less digits than its factorization.

47135521068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628717 (or 628715 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 47135521068 in words is "forty-seven billion, one hundred thirty-five million, five hundred twenty-one thousand, sixty-eight".