381433042357 has 2 divisors, whose sum is σ = 381433042358. Its totient is φ = 381433042356.

The previous prime is 381433042259. The next prime is 381433042387. The reversal of 381433042357 is 753240334183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198979337041 + 182453705316 = 446071^2 + 427146^2 .

It is a cyclic number.

It is not a de Polignac number, because 381433042357 - 2¹¹ = 381433040309 is a prime.

It is a super-2 number, since 2×381433042357² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381433042387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190716521178 + 190716521179.

It is an arithmetic number, because the mean of its divisors is an integer number (190716521179).

Almost surely, 2^381433042357 is an apocalyptic number.

It is an amenable number.

381433042357 is a deficient number, since it is larger than the sum of its proper divisors (1).

381433042357 is an equidigital number, since it uses as much as digits as its factorization.

381433042357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 381433042357 in words is "three hundred eighty-one billion, four hundred thirty-three million, forty-two thousand, three hundred fifty-seven".