1383947071085 has 16 divisors (see below), whose sum is σ = 1662067512000. Its totient is φ = 1106270639616.

The previous prime is 1383947071079. The next prime is 1383947071103. The reversal of 1383947071085 is 5801707493831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1383947071085 - 2⁶ = 1383947071021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1383947071085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38697182 + ... + 38732928.

It is an arithmetic number, because the mean of its divisors is an integer number (103879219500).

Almost surely, 2^{1383947071085} is an apocalyptic number.

It is an amenable number.

1383947071085 is a deficient number, since it is larger than the sum of its proper divisors (278120440915).

1383947071085 is a wasteful number, since it uses less digits than its factorization.

1383947071085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41740.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 1383947071085 in words is "one trillion, three hundred eighty-three billion, nine hundred forty-seven million, seventy-one thousand, eighty-five".