1385323706850 has 48 divisors (see below), whose sum is σ = 3438192286848. Its totient is φ = 369141215040.

The previous prime is 1385323706849. The next prime is 1385323706857. The reversal of 1385323706850 is 586073235831.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1385323706793 and 1385323706802.

It is not an unprimeable number, because it can be changed into a prime (1385323706857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3280789 + ... + 3678888.

It is an arithmetic number, because the mean of its divisors is an integer number (71629005976).

Almost surely, 2^{1385323706850} is an apocalyptic number.

1385323706850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1385323706850 is an abundant number, since it is smaller than the sum of its proper divisors (2052868579998).

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

1385323706850 is a wasteful number, since it uses less digits than its factorization.

1385323706850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6961019 (or 6961014 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 1385323706850 in words is "one trillion, three hundred eighty-five billion, three hundred twenty-three million, seven hundred six thousand, eight hundred fifty".