381229244065 has 16 divisors (see below), whose sum is σ = 466568974800. Its totient is φ = 298932221952.

The previous prime is 381229244021. The next prime is 381229244069. The reversal of 381229244065 is 560442922183.

It can be written as a sum of positive squares in 8 ways, for example, as 489648384 + 380739595681 = 22128^2 + 617041^2 .

It is a cyclic number.

It is not a de Polignac number, because 381229244065 - 2³¹ = 379081760417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381229244069) 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, 445500 + ... + 980269.

It is an arithmetic number, because the mean of its divisors is an integer number (29160560925).

Almost surely, 2^381229244065 is an apocalyptic number.

It is an amenable number.

381229244065 is a deficient number, since it is larger than the sum of its proper divisors (85339730735).

381229244065 is a wasteful number, since it uses less digits than its factorization.

381229244065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426836.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 381229244065 in words is "three hundred eighty-one billion, two hundred twenty-nine million, two hundred forty-four thousand, sixty-five".