381275558658 has 12 divisors (see below), whose sum is σ = 826097043798. Its totient is φ = 127091852880.

The previous prime is 381275558647. The next prime is 381275558687. The reversal of 381275558658 is 856855572183.

It is a happy number.

381275558658 is a `hidden beast` number, since 3 + 8 + 1 + 2 + 75 + 558 + 6 + 5 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 231527455929 + 149748102729 = 481173^2 + 386973^2 .

It is a junction number, because it is equal to n+sod(n) for n = 381275558595 and 381275558604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10590987723 + ... + 10590987758.

Almost surely, 2^381275558658 is an apocalyptic number.

381275558658 is an abundant number, since it is smaller than the sum of its proper divisors (444821485140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381275558658 is a wasteful number, since it uses less digits than its factorization.

381275558658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21181975489 (or 21181975486 counting only the distinct ones).

The product of its digits is 80640000, while the sum is 63.

The spelling of 381275558658 in words is "three hundred eighty-one billion, two hundred seventy-five million, five hundred fifty-eight thousand, six hundred fifty-eight".