47456305521 has 16 divisors (see below), whose sum is σ = 64160415360. Its totient is φ = 31195117440.

The previous prime is 47456305439. The next prime is 47456305537. The reversal of 47456305521 is 12550365474.

It is not a de Polignac number, because 47456305521 - 2¹¹ = 47456303473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47456305021) 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 15 ways as a sum of consecutive naturals, for example, 774435 + ... + 833463.

It is an arithmetic number, because the mean of its divisors is an integer number (4010025960).

Almost surely, 2^47456305521 is an apocalyptic number.

It is an amenable number.

47456305521 is a deficient number, since it is larger than the sum of its proper divisors (16704109839).

47456305521 is a wasteful number, since it uses less digits than its factorization.

47456305521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62776.

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 47456305521 in words is "forty-seven billion, four hundred fifty-six million, three hundred five thousand, five hundred twenty-one".