16868435398 has 32 divisors (see below), whose sum is σ = 26135524800. Its totient is φ = 8161460736.

The previous prime is 16868435371. The next prime is 16868435399. The reversal of 16868435398 is 89353486861.

It is a super-2 number, since 2×16868435398² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868435399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4139490 + ... + 4143562.

It is an arithmetic number, because the mean of its divisors is an integer number (816735150).

Almost surely, 2^16868435398 is an apocalyptic number.

16868435398 is a deficient number, since it is larger than the sum of its proper divisors (9267089402).

16868435398 is a wasteful number, since it uses less digits than its factorization.

16868435398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4656.

The product of its digits is 29859840, while the sum is 61.

The spelling of 16868435398 in words is "sixteen billion, eight hundred sixty-eight million, four hundred thirty-five thousand, three hundred ninety-eight".