47507931771 has 16 divisors (see below), whose sum is σ = 63643591200. Its totient is φ = 31522452480.

The previous prime is 47507931769. The next prime is 47507931811. The reversal of 47507931771 is 17713970574.

It is a happy number.

It is not a de Polignac number, because 47507931771 - 2¹ = 47507931769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47507931571) 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 15 ways as a sum of consecutive naturals, for example, 524491 + ... + 608363.

It is an arithmetic number, because the mean of its divisors is an integer number (3977724450).

Almost surely, 2^47507931771 is an apocalyptic number.

47507931771 is a deficient number, since it is larger than the sum of its proper divisors (16135659429).

47507931771 is a wasteful number, since it uses less digits than its factorization.

47507931771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84766.

The product of its (nonzero) digits is 1296540, while the sum is 51.

The spelling of 47507931771 in words is "forty-seven billion, five hundred seven million, nine hundred thirty-one thousand, seven hundred seventy-one".