451249914913 has 12 divisors (see below), whose sum is σ = 524956070340. Its totient is φ = 386761546752.

The previous prime is 451249914911. The next prime is 451249914917. The reversal of 451249914913 is 319419942154.

It can be written as a sum of positive squares in 2 ways, for example, as 230296331664 + 220953583249 = 479892^2 + 470057^2 .

It is not a de Polignac number, because 451249914913 - 2¹ = 451249914911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451249914911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531345 + ... + 1088497.

It is an arithmetic number, because the mean of its divisors is an integer number (43746339195).

Almost surely, 2^451249914913 is an apocalyptic number.

It is an amenable number.

451249914913 is a deficient number, since it is larger than the sum of its proper divisors (73706155427).

451249914913 is a wasteful number, since it uses less digits than its factorization.

451249914913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573696 (or 573689 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 52.

The spelling of 451249914913 in words is "four hundred fifty-one billion, two hundred forty-nine million, nine hundred fourteen thousand, nine hundred thirteen".