381543747250 has 32 divisors (see below), whose sum is σ = 716828544432. Its totient is φ = 152066505600.

The previous prime is 381543747241. The next prime is 381543747251. The reversal of 381543747250 is 52747345183.

It can be written as a sum of positive squares in 8 ways, for example, as 414081801 + 381129665449 = 20349^2 + 617357^2 .

It is a junction number, because it is equal to n+sod(n) for n = 381543747194 and 381543747203.

It is not an unprimeable number, because it can be changed into a prime (381543747251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2685579 + ... + 2824078.

Almost surely, 2^381543747250 is an apocalyptic number.

381543747250 is a deficient number, since it is larger than the sum of its proper divisors (335284797182).

381543747250 is a wasteful number, since it uses less digits than its factorization.

381543747250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5509951 (or 5509941 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 381543747250 in words is "three hundred eighty-one billion, five hundred forty-three million, seven hundred forty-seven thousand, two hundred fifty".