381850683779 has 4 divisors (see below), whose sum is σ = 387549947784. Its totient is φ = 376151419776.

The previous prime is 381850683727. The next prime is 381850683829. The reversal of 381850683779 is 977386058183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381850683779 - 2³⁶ = 313131207043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381850613779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2849631902 + ... + 2849632035.

It is an arithmetic number, because the mean of its divisors is an integer number (96887486946).

Almost surely, 2^381850683779 is an apocalyptic number.

381850683779 is a deficient number, since it is larger than the sum of its proper divisors (5699264005).

381850683779 is an equidigital number, since it uses as much as digits as its factorization.

381850683779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699264004.

The product of its (nonzero) digits is 60963840, while the sum is 65.

The spelling of 381850683779 in words is "three hundred eighty-one billion, eight hundred fifty million, six hundred eighty-three thousand, seven hundred seventy-nine".