450568491811 has 4 divisors (see below), whose sum is σ = 450992357872. Its totient is φ = 450144625752.

The previous prime is 450568491797. The next prime is 450568491823. The reversal of 450568491811 is 118194865054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 450568491811 - 2¹⁹ = 450567967523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450568491871) 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, 211931436 + ... + 211933561.

It is an arithmetic number, because the mean of its divisors is an integer number (112748089468).

Almost surely, 2^450568491811 is an apocalyptic number.

450568491811 is a deficient number, since it is larger than the sum of its proper divisors (423866061).

450568491811 is a wasteful number, since it uses less digits than its factorization.

450568491811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423866060.

The product of its (nonzero) digits is 1382400, while the sum is 52.

The spelling of 450568491811 in words is "four hundred fifty billion, five hundred sixty-eight million, four hundred ninety-one thousand, eight hundred eleven".