1326773839950 has 192 divisors, whose sum is σ = 3985841764800. Its totient is φ = 326590133760.

The previous prime is 1326773839931. The next prime is 1326773839973. The reversal of 1326773839950 is 599383776231.

1326773839950 is a `hidden beast` number, since 132 + 6 + 77 + 383 + 9 + 9 + 50 = 666.

It is a Curzon number.

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 95 ways as a sum of consecutive naturals, for example, 954886 + ... + 1888214.

It is an arithmetic number, because the mean of its divisors is an integer number (20759592525).

Almost surely, 2^{1326773839950} is an apocalyptic number.

1326773839950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1326773839950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1992920882400).

1326773839950 is an abundant number, since it is smaller than the sum of its proper divisors (2659067924850).

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

1326773839950 is an equidigital number, since it uses as much as digits as its factorization.

1326773839950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933375 (or 933352 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 63.

The spelling of 1326773839950 in words is "one trillion, three hundred twenty-six billion, seven hundred seventy-three million, eight hundred thirty-nine thousand, nine hundred fifty".