381886603385 has 32 divisors (see below), whose sum is σ = 570305145600. Its totient is φ = 239528136960.

The previous prime is 381886603367. The next prime is 381886603391. The reversal of 381886603385 is 583306688183.

It is not a de Polignac number, because 381886603385 - 2²⁶ = 381819494521 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9881846 + ... + 9920415.

It is an arithmetic number, because the mean of its divisors is an integer number (17822035800).

Almost surely, 2^381886603385 is an apocalyptic number.

381886603385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

381886603385 is a deficient number, since it is larger than the sum of its proper divisors (188418542215).

381886603385 is a wasteful number, since it uses less digits than its factorization.

381886603385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19802321.

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 381886603385 in words is "three hundred eighty-one billion, eight hundred eighty-six million, six hundred three thousand, three hundred eighty-five".