47520821487 has 8 divisors (see below), whose sum is σ = 63363483904. Its totient is φ = 31679353368.

The previous prime is 47520821419. The next prime is 47520821533. The reversal of 47520821487 is 78412802574.

47520821487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47520821487 - 2¹¹ = 47520819439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47520825487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201193 + ... + 368130.

It is an arithmetic number, because the mean of its divisors is an integer number (7920435488).

Almost surely, 2^47520821487 is an apocalyptic number.

47520821487 is a deficient number, since it is larger than the sum of its proper divisors (15842662417).

47520821487 is a wasteful number, since it uses less digits than its factorization.

47520821487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597149.

The product of its (nonzero) digits is 1003520, while the sum is 48.

The spelling of 47520821487 in words is "forty-seven billion, five hundred twenty million, eight hundred twenty-one thousand, four hundred eighty-seven".