1326378275850 has 48 divisors (see below), whose sum is σ = 3308432166432. Its totient is φ = 351656352960.

The previous prime is 1326378275839. The next prime is 1326378275921. The reversal of 1326378275850 is 585728736231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25530472 + ... + 25582371.

It is an arithmetic number, because the mean of its divisors is an integer number (68925670134).

Almost surely, 2^{1326378275850} is an apocalyptic number.

1326378275850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1326378275850 is an abundant number, since it is smaller than the sum of its proper divisors (1982053890582).

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

1326378275850 is a wasteful number, since it uses less digits than its factorization.

1326378275850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51113031 (or 51113026 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 1326378275850 in words is "one trillion, three hundred twenty-six billion, three hundred seventy-eight million, two hundred seventy-five thousand, eight hundred fifty".