457446388391 has 2 divisors, whose sum is σ = 457446388392. Its totient is φ = 457446388390.

The previous prime is 457446388349. The next prime is 457446388417. The reversal of 457446388391 is 193883644754.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 457446388391 - 2²² = 457442194087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457446388331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228723194195 + 228723194196.

It is an arithmetic number, because the mean of its divisors is an integer number (228723194196).

Almost surely, 2^457446388391 is an apocalyptic number.

457446388391 is a deficient number, since it is larger than the sum of its proper divisors (1).

457446388391 is an equidigital number, since it uses as much as digits as its factorization.

457446388391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69672960, while the sum is 62.

The spelling of 457446388391 in words is "four hundred fifty-seven billion, four hundred forty-six million, three hundred eighty-eight thousand, three hundred ninety-one".