451488280373761 has 4 divisors (see below), whose sum is σ = 478046414513412. Its totient is φ = 424930146234112.

The previous prime is 451488280373759. The next prime is 451488280373773. The reversal of 451488280373761 is 167373082884154.

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

It can be written as a sum of positive squares in 2 ways, for example, as 219210410731536 + 232277869642225 = 14805756^2 + 15240665^2 .

It is a cyclic number.

It is not a de Polignac number, because 451488280373761 - 2¹ = 451488280373759 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451488280373561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13279067069800 + ... + 13279067069833.

It is an arithmetic number, because the mean of its divisors is an integer number (119511603628353).

Almost surely, 2^{451488280373761} is an apocalyptic number.

It is an amenable number.

451488280373761 is a deficient number, since it is larger than the sum of its proper divisors (26558134139651).

451488280373761 is a wasteful number, since it uses less digits than its factorization.

451488280373761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26558134139650.

The product of its (nonzero) digits is 216760320, while the sum is 67.

The spelling of 451488280373761 in words is "four hundred fifty-one trillion, four hundred eighty-eight billion, two hundred eighty million, three hundred seventy-three thousand, seven hundred sixty-one".