451505621325263 has 4 divisors (see below), whose sum is σ = 451507472631720. Its totient is φ = 451503770018808.

The previous prime is 451505621325233. The next prime is 451505621325287. The reversal of 451505621325263 is 362523126505154.

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 451505621325263 - 2¹⁴ = 451505621308879 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 (451505621325233) 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, 925287353 + ... + 925775186.

It is an arithmetic number, because the mean of its divisors is an integer number (112876868157930).

Almost surely, 2^{451505621325263} is an apocalyptic number.

451505621325263 is a deficient number, since it is larger than the sum of its proper divisors (1851306457).

451505621325263 is a wasteful number, since it uses less digits than its factorization.

451505621325263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851306456.

The product of its (nonzero) digits is 6480000, while the sum is 50.

The spelling of 451505621325263 in words is "four hundred fifty-one trillion, five hundred five billion, six hundred twenty-one million, three hundred twenty-five thousand, two hundred sixty-three".