381275530450 has 12 divisors (see below), whose sum is σ = 709172486730. Its totient is φ = 152510212160.

The previous prime is 381275530397. The next prime is 381275530451. The reversal of 381275530450 is 54035572183.

It can be written as a sum of positive squares in 3 ways, for example, as 302954470569 + 78321059881 = 550413^2 + 279859^2 .

It is a junction number, because it is equal to n+sod(n) for n = 381275530397 and 381275530406.

It is not an unprimeable number, because it can be changed into a prime (381275530451) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3812755255 + ... + 3812755354.

Almost surely, 2^381275530450 is an apocalyptic number.

381275530450 is a deficient number, since it is larger than the sum of its proper divisors (327896956280).

381275530450 is a wasteful number, since it uses less digits than its factorization.

381275530450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625510621 (or 7625510616 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 381275530450 in words is "three hundred eighty-one billion, two hundred seventy-five million, five hundred thirty thousand, four hundred fifty".