451322313251 has 4 divisors (see below), whose sum is σ = 451325176104. Its totient is φ = 451319450400.

The previous prime is 451322313227. The next prime is 451322313271. The reversal of 451322313251 is 152313223154.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451322313251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451322313271) 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, 1180265 + ... + 1515146.

It is an arithmetic number, because the mean of its divisors is an integer number (112831294026).

Almost surely, 2^451322313251 is an apocalyptic number.

451322313251 is a deficient number, since it is larger than the sum of its proper divisors (2862853).

451322313251 is a wasteful number, since it uses less digits than its factorization.

451322313251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862852.

The product of its digits is 21600, while the sum is 32.

The spelling of 451322313251 in words is "four hundred fifty-one billion, three hundred twenty-two million, three hundred thirteen thousand, two hundred fifty-one".