451522042403 has 4 divisors (see below), whose sum is σ = 452861870760. Its totient is φ = 450182214048.

The previous prime is 451522042369. The next prime is 451522042409. The reversal of 451522042403 is 304240225154.

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 451522042403 - 2²² = 451517848099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 451522042403.

It is not an unprimeable number, because it can be changed into a prime (451522042409) 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, 669913673 + ... + 669914346.

It is an arithmetic number, because the mean of its divisors is an integer number (113215467690).

Almost surely, 2^451522042403 is an apocalyptic number.

451522042403 is a deficient number, since it is larger than the sum of its proper divisors (1339828357).

451522042403 is a wasteful number, since it uses less digits than its factorization.

451522042403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339828356.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 451522042403 its reverse (304240225154), we get a palindrome (755762267557).

The spelling of 451522042403 in words is "four hundred fifty-one billion, five hundred twenty-two million, forty-two thousand, four hundred three".