47978304871 has 6 divisors (see below), whose sum is σ = 55811497560. Its totient is φ = 41124261276.

The previous prime is 47978304851. The next prime is 47978304887. The reversal of 47978304871 is 17840387974.

It is not a de Polignac number, because 47978304871 - 2¹⁵ = 47978272103 is a prime.

It is a super-3 number, since 3×47978304871³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47978304851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 489574491 + ... + 489574588.

It is an arithmetic number, because the mean of its divisors is an integer number (9301916260).

Almost surely, 2^47978304871 is an apocalyptic number.

47978304871 is a deficient number, since it is larger than the sum of its proper divisors (7833192689).

47978304871 is an equidigital number, since it uses as much as digits as its factorization.

47978304871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979149093 (or 979149086 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 58.

The spelling of 47978304871 in words is "forty-seven billion, nine hundred seventy-eight million, three hundred four thousand, eight hundred seventy-one".