16868047473 has 8 divisors (see below), whose sum is σ = 24989700000. Its totient is φ = 11245364964.

The previous prime is 16868047423. The next prime is 16868047477. The reversal of 16868047473 is 37474086861.

16868047473 is a `hidden beast` number, since 16 + 86 + 80 + 4 + 7 + 473 = 666.

It is not a de Polignac number, because 16868047473 - 2⁶ = 16868047409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16868047477) 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, 312371223 + ... + 312371276.

It is an arithmetic number, because the mean of its divisors is an integer number (3123712500).

Almost surely, 2^16868047473 is an apocalyptic number.

It is an amenable number.

16868047473 is a deficient number, since it is larger than the sum of its proper divisors (8121652527).

16868047473 is an equidigital number, since it uses as much as digits as its factorization.

16868047473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624742508 (or 624742502 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

It can be divided in two parts, 168680 and 47473, that added together give a triangular number (216153 = T₆₅₇).

The spelling of 16868047473 in words is "sixteen billion, eight hundred sixty-eight million, forty-seven thousand, four hundred seventy-three".