451440252564005 has 8 divisors (see below), whose sum is σ = 541956207299352. Its totient is φ = 361000265902848.

The previous prime is 451440252563987. The next prime is 451440252564073. The reversal of 451440252564005 is 500465252044154.

It can be written as a sum of positive squares in 4 ways, for example, as 83794947065764 + 367645305498241 = 9153958^2 + 19174079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 451440252564005 - 2⁴⁶ = 381071508386341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18992005472 + ... + 18992029241.

It is an arithmetic number, because the mean of its divisors is an integer number (67744525912419).

Almost surely, 2^{451440252564005} is an apocalyptic number.

It is an amenable number.

451440252564005 is a deficient number, since it is larger than the sum of its proper divisors (90515954735347).

451440252564005 is a wasteful number, since it uses less digits than its factorization.

451440252564005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37984037095.

The product of its (nonzero) digits is 3840000, while the sum is 47.

The spelling of 451440252564005 in words is "four hundred fifty-one trillion, four hundred forty billion, two hundred fifty-two million, five hundred sixty-four thousand, five".