450084312557 has 4 divisors (see below), whose sum is σ = 491001068256. Its totient is φ = 409167556860.

The previous prime is 450084312553. The next prime is 450084312571. The reversal of 450084312557 is 755213480054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 450084312557 - 2² = 450084312553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450084312553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20458377833 + ... + 20458377854.

It is an arithmetic number, because the mean of its divisors is an integer number (122750267064).

Almost surely, 2^450084312557 is an apocalyptic number.

It is an amenable number.

450084312557 is a deficient number, since it is larger than the sum of its proper divisors (40916755699).

450084312557 is a wasteful number, since it uses less digits than its factorization.

450084312557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40916755698.

The product of its (nonzero) digits is 672000, while the sum is 44.

The spelling of 450084312557 in words is "four hundred fifty billion, eighty-four million, three hundred twelve thousand, five hundred fifty-seven".