381791903033 has 2 divisors, whose sum is σ = 381791903034. Its totient is φ = 381791903032.

The previous prime is 381791902967. The next prime is 381791903093. The reversal of 381791903033 is 330309197183.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292002979129 + 89788923904 = 540373^2 + 299648^2 .

It is a cyclic number.

It is not a de Polignac number, because 381791903033 - 2¹² = 381791898937 is a prime.

It is not a weakly prime, because it can be changed into another prime (381791903093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190895951516 + 190895951517.

It is an arithmetic number, because the mean of its divisors is an integer number (190895951517).

Almost surely, 2^381791903033 is an apocalyptic number.

It is an amenable number.

381791903033 is a deficient number, since it is larger than the sum of its proper divisors (1).

381791903033 is an equidigital number, since it uses as much as digits as its factorization.

381791903033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 381791903033 in words is "three hundred eighty-one billion, seven hundred ninety-one million, nine hundred three thousand, thirty-three".