381275558660 has 96 divisors (see below), whose sum is σ = 818478786048. Its totient is φ = 149156536320.

The previous prime is 381275558647. The next prime is 381275558687. The reversal of 381275558660 is 66855572183.

It is a happy number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 381275558596 and 381275558605.

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 31 ways as a sum of consecutive naturals, for example, 118517372 + ... + 118520588.

It is an arithmetic number, because the mean of its divisors is an integer number (8525820688).

Almost surely, 2^381275558660 is an apocalyptic number.

It is an amenable number.

381275558660 is an abundant number, since it is smaller than the sum of its proper divisors (437203227388).

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

381275558660 is a wasteful number, since it uses less digits than its factorization.

381275558660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3901 (or 3899 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 56.

The spelling of 381275558660 in words is "three hundred eighty-one billion, two hundred seventy-five million, five hundred fifty-eight thousand, six hundred sixty".