16826394390 has 64 divisors (see below), whose sum is σ = 43532197632. Its totient is φ = 4137840000.

The previous prime is 16826394373. The next prime is 16826394397. The reversal of 16826394390 is 9349362861.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16826394397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389365 + ... + 430415.

It is an arithmetic number, because the mean of its divisors is an integer number (680190588).

Almost surely, 2^16826394390 is an apocalyptic number.

16826394390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16826394390 is an abundant number, since it is smaller than the sum of its proper divisors (26705803242).

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

16826394390 is a wasteful number, since it uses less digits than its factorization.

16826394390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42125.

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 16826394390 in words is "sixteen billion, eight hundred twenty-six million, three hundred ninety-four thousand, three hundred ninety".