451015251243 has 16 divisors (see below), whose sum is σ = 604472099616. Its totient is φ = 299117952000.

The previous prime is 451015251191. The next prime is 451015251331. The reversal of 451015251243 is 342152510154.

It is not a de Polignac number, because 451015251243 - 2¹² = 451015247147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (451015251343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6169755 + ... + 6242427.

It is an arithmetic number, because the mean of its divisors is an integer number (37779506226).

Almost surely, 2^451015251243 is an apocalyptic number.

451015251243 is a deficient number, since it is larger than the sum of its proper divisors (153456848373).

451015251243 is a wasteful number, since it uses less digits than its factorization.

451015251243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83374.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 451015251243 its reverse (342152510154), we get a palindrome (793167761397).

The spelling of 451015251243 in words is "four hundred fifty-one billion, fifteen million, two hundred fifty-one thousand, two hundred forty-three".