47867991172 has 12 divisors (see below), whose sum is σ = 83807763676. Its totient is φ = 23922915840.

The previous prime is 47867991169. The next prime is 47867991191. The reversal of 47867991172 is 27119976874.

It can be written as a sum of positive squares in 2 ways, for example, as 29743831296 + 18124159876 = 172464^2 + 134626^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47867991172.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2760213 + ... + 2777500.

Almost surely, 2^47867991172 is an apocalyptic number.

It is an amenable number.

47867991172 is a deficient number, since it is larger than the sum of its proper divisors (35939772504).

47867991172 is a wasteful number, since it uses less digits than its factorization.

47867991172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539878 (or 5539876 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 61.

The spelling of 47867991172 in words is "forty-seven billion, eight hundred sixty-seven million, nine hundred ninety-one thousand, one hundred seventy-two".