381298496533 has 2 divisors, whose sum is σ = 381298496534. Its totient is φ = 381298496532.

The previous prime is 381298496507. The next prime is 381298496563. The reversal of 381298496533 is 335694892183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294884839089 + 86413657444 = 543033^2 + 293962^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381298496533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381298496503) by changing a digit.

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 as a sum of consecutive naturals, namely, 190649248266 + 190649248267.

It is an arithmetic number, because the mean of its divisors is an integer number (190649248267).

Almost surely, 2^381298496533 is an apocalyptic number.

It is an amenable number.

381298496533 is a deficient number, since it is larger than the sum of its proper divisors (1).

381298496533 is an equidigital number, since it uses as much as digits as its factorization.

381298496533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33592320, while the sum is 61.

The spelling of 381298496533 in words is "three hundred eighty-one billion, two hundred ninety-eight million, four hundred ninety-six thousand, five hundred thirty-three".