20147316867 has 56 divisors (see below), whose sum is σ = 30686246064. Its totient is φ = 13220241984.

The previous prime is 20147316841. The next prime is 20147316901. The reversal of 20147316867 is 76861374102.

It is not a de Polignac number, because 20147316867 - 2¹⁰ = 20147315843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20147316817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 13493773 + ... + 13495265.

Almost surely, 2^20147316867 is an apocalyptic number.

20147316867 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20147316867 is a deficient number, since it is larger than the sum of its proper divisors (10538929197).

20147316867 is a wasteful number, since it uses less digits than its factorization.

20147316867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791 (or 1776 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 20147316867 in words is "twenty billion, one hundred forty-seven million, three hundred sixteen thousand, eight hundred sixty-seven".