1385225225378 has 16 divisors (see below), whose sum is σ = 2149520355000. Its totient is φ = 668719172352.

The previous prime is 1385225225327. The next prime is 1385225225383. The reversal of 1385225225378 is 8735225225831.

It can be written as a sum of positive squares in 4 ways, for example, as 1384474629769 + 750595609 = 1176637^2 + 27397^2 .

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 7 ways as a sum of consecutive naturals, for example, 4790048 + ... + 5070996.

Almost surely, 2^{1385225225378} is an apocalyptic number.

1385225225378 is a deficient number, since it is larger than the sum of its proper divisors (764295129622).

1385225225378 is a wasteful number, since it uses less digits than its factorization.

1385225225378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365989.

The product of its digits is 8064000, while the sum is 53.

The spelling of 1385225225378 in words is "one trillion, three hundred eighty-five billion, two hundred twenty-five million, two hundred twenty-five thousand, three hundred seventy-eight".