381530254668 has 24 divisors (see below), whose sum is σ = 890336111280. Its totient is φ = 127162630080.

The previous prime is 381530254663. The next prime is 381530254681. The reversal of 381530254668 is 866452035183.

It is a self number, because there is not a number n which added to its sum of digits gives 381530254668.

It is not an unprimeable number, because it can be changed into a prime (381530254663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652323 + ... + 1869018.

It is an arithmetic number, because the mean of its divisors is an integer number (37097337970).

Almost surely, 2^381530254668 is an apocalyptic number.

It is an amenable number.

381530254668 is an abundant number, since it is smaller than the sum of its proper divisors (508805856612).

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

381530254668 is a wasteful number, since it uses less digits than its factorization.

381530254668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530377 (or 3530375 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 381530254668 in words is "three hundred eighty-one billion, five hundred thirty million, two hundred fifty-four thousand, six hundred sixty-eight".