16871477385 has 48 divisors (see below), whose sum is σ = 32766926976. Its totient is φ = 7377334272.

The previous prime is 16871477321. The next prime is 16871477387. The reversal of 16871477385 is 58377417861.

It is not a de Polignac number, because 16871477385 - 2⁶ = 16871477321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16871477387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 482104 + ... + 515913.

It is an arithmetic number, because the mean of its divisors is an integer number (682644312).

Almost surely, 2^16871477385 is an apocalyptic number.

16871477385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16871477385 is a deficient number, since it is larger than the sum of its proper divisors (15895449591).

16871477385 is a wasteful number, since it uses less digits than its factorization.

16871477385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998062 (or 998055 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 57.

The spelling of 16871477385 in words is "sixteen billion, eight hundred seventy-one million, four hundred seventy-seven thousand, three hundred eighty-five".