1381043855000 has 80 divisors (see below), whose sum is σ = 3376472370480. Its totient is φ = 528399344000.

The previous prime is 1381043854997. The next prime is 1381043855039. The reversal of 1381043855000 is 5583401831.

It is a super-2 number, since 2×1381043855000² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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 19 ways as a sum of consecutive naturals, for example, 5889539 + ... + 6119538.

It is an arithmetic number, because the mean of its divisors is an integer number (42205904631).

Almost surely, 2^{1381043855000} is an apocalyptic number.

1381043855000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1381043855000 is an abundant number, since it is smaller than the sum of its proper divisors (1995428515480).

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

1381043855000 is a wasteful number, since it uses less digits than its factorization.

1381043855000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12009126 (or 12009107 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 1381043855000 in words is "one trillion, three hundred eighty-one billion, forty-three million, eight hundred fifty-five thousand".