16738862868 has 480 divisors, whose sum is σ = 56321895168. Its totient is φ = 4217702400.

The previous prime is 16738862821. The next prime is 16738862869. The reversal of 16738862868 is 86826883761.

It is a super-2 number, since 2×16738862868² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16738862869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 73739371 + ... + 73739597.

Almost surely, 2^16738862868 is an apocalyptic number.

16738862868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16738862868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28160947584).

16738862868 is an abundant number, since it is smaller than the sum of its proper divisors (39583032300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16738862868 is a wasteful number, since it uses less digits than its factorization.

16738862868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 354 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The spelling of 16738862868 in words is "sixteen billion, seven hundred thirty-eight million, eight hundred sixty-two thousand, eight hundred sixty-eight".