1385826921792 has 42 divisors (see below), whose sum is σ = 3972222654218. Its totient is φ = 461942307072.

The previous prime is 1385826921763. The next prime is 1385826921803. The reversal of 1385826921792 is 2971296285831.

1385826921792 is a `hidden beast` number, since 1 + 38 + 582 + 6 + 9 + 2 + 17 + 9 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1333415229696 + 52411692096 = 1154736^2 + 228936^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 1202974183 + ... + 1202975334.

Almost surely, 2^{1385826921792} is an apocalyptic number.

1385826921792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1385826921792 is an abundant number, since it is smaller than the sum of its proper divisors (2586395732426).

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

1385826921792 is a wasteful number, since it uses less digits than its factorization.

1385826921792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405949535 (or 2405949522 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The spelling of 1385826921792 in words is "one trillion, three hundred eighty-five billion, eight hundred twenty-six million, nine hundred twenty-one thousand, seven hundred ninety-two".