16378726590 has 48 divisors (see below), whose sum is σ = 43184490336. Its totient is φ = 4306142400.

The previous prime is 16378726549. The next prime is 16378726591. The reversal of 16378726590 is 9562787361.

16378726590 is a `hidden beast` number, since 1 + 6 + 378 + 7 + 265 + 9 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16378726591) 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 23 ways as a sum of consecutive naturals, for example, 1275201 + ... + 1287980.

It is an arithmetic number, because the mean of its divisors is an integer number (899676882).

Almost surely, 2^16378726590 is an apocalyptic number.

16378726590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16378726590 is an abundant number, since it is smaller than the sum of its proper divisors (26805763746).

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

16378726590 is a wasteful number, since it uses less digits than its factorization.

16378726590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563265 (or 2563262 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 16378726590 in words is "sixteen billion, three hundred seventy-eight million, seven hundred twenty-six thousand, five hundred ninety".