450681361279 has 2 divisors, whose sum is σ = 450681361280. Its totient is φ = 450681361278.

The previous prime is 450681361267. The next prime is 450681361307. The reversal of 450681361279 is 972163186054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450681361279 - 2³³ = 442091426687 is a prime.

It is a super-2 number, since 2×450681361279² (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 (450681361679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225340680639 + 225340680640.

It is an arithmetic number, because the mean of its divisors is an integer number (225340680640).

It is a 1-persistent number, because it is pandigital, but 2⋅450681361279 = 901362722558 is not.

Almost surely, 2^450681361279 is an apocalyptic number.

450681361279 is a deficient number, since it is larger than the sum of its proper divisors (1).

450681361279 is an equidigital number, since it uses as much as digits as its factorization.

450681361279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 450681361279 in words is "four hundred fifty billion, six hundred eighty-one million, three hundred sixty-one thousand, two hundred seventy-nine".