381691788313 has 16 divisors (see below), whose sum is σ = 425924720640. Its totient is φ = 339071216400.

The previous prime is 381691788311. The next prime is 381691788337. The reversal of 381691788313 is 313887196183.

It is not a de Polignac number, because 381691788313 - 2¹ = 381691788311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381691788311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258783 + ... + 911236.

It is an arithmetic number, because the mean of its divisors is an integer number (26620295040).

Almost surely, 2^381691788313 is an apocalyptic number.

It is an amenable number.

381691788313 is a deficient number, since it is larger than the sum of its proper divisors (44232932327).

381691788313 is a wasteful number, since it uses less digits than its factorization.

381691788313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170708.

The product of its digits is 5225472, while the sum is 58.

The spelling of 381691788313 in words is "three hundred eighty-one billion, six hundred ninety-one million, seven hundred eighty-eight thousand, three hundred thirteen".