450128212867 has 8 divisors (see below), whose sum is σ = 450628010000. Its totient is φ = 449628641280.

The previous prime is 450128212823. The next prime is 450128212871. The reversal of 450128212867 is 768212821054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450128212867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450128212817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4106323 + ... + 4214515.

It is an arithmetic number, because the mean of its divisors is an integer number (56328501250).

Almost surely, 2^450128212867 is an apocalyptic number.

450128212867 is a deficient number, since it is larger than the sum of its proper divisors (499797133).

450128212867 is a wasteful number, since it uses less digits than its factorization.

450128212867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112773.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 450128212867 in words is "four hundred fifty billion, one hundred twenty-eight million, two hundred twelve thousand, eight hundred sixty-seven".