380828006785 has 16 divisors (see below), whose sum is σ = 458256140496. Its totient is φ = 303821826048.

The previous prime is 380828006777. The next prime is 380828006807. The reversal of 380828006785 is 587600828083.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 133947216144 + 246880790641 = 365988^2 + 496871^2 .

It is a cyclic number.

It is not a de Polignac number, because 380828006785 - 2³ = 380828006777 is a prime.

It is a Duffinian 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, 2709667 + ... + 2846743.

It is an arithmetic number, because the mean of its divisors is an integer number (28641008781).

Almost surely, 2^380828006785 is an apocalyptic number.

It is an amenable number.

380828006785 is a deficient number, since it is larger than the sum of its proper divisors (77428133711).

380828006785 is a wasteful number, since it uses less digits than its factorization.

380828006785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138612.

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 380828006785 in words is "three hundred eighty billion, eight hundred twenty-eight million, six thousand, seven hundred eighty-five".