16857493752 has 128 divisors (see below), whose sum is σ = 47692800000. Its totient is φ = 4918448640.

The previous prime is 16857493733. The next prime is 16857493769. The reversal of 16857493752 is 25739475861.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16857493692 and 16857493701.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2929374 + ... + 2935122.

It is an arithmetic number, because the mean of its divisors is an integer number (372600000).

Almost surely, 2^16857493752 is an apocalyptic number.

16857493752 is a gapful number since it is divisible by the number (12) 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 16857493752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23846400000).

16857493752 is an abundant number, since it is smaller than the sum of its proper divisors (30835306248).

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

16857493752 is a wasteful number, since it uses less digits than its factorization.

16857493752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181 (or 6177 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 57.

The spelling of 16857493752 in words is "sixteen billion, eight hundred fifty-seven million, four hundred ninety-three thousand, seven hundred fifty-two".