451440243620125 has 32 divisors (see below), whose sum is σ = 582590051417088. Its totient is φ = 348890034600000.

The previous prime is 451440243620117. The next prime is 451440243620141. The reversal of 451440243620125 is 521026342044154.

It is not a de Polignac number, because 451440243620125 - 2³ = 451440243620117 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 31 ways as a sum of consecutive naturals, for example, 99802006 + ... + 104227255.

It is an arithmetic number, because the mean of its divisors is an integer number (18205939106784).

Almost surely, 2^{451440243620125} is an apocalyptic number.

It is an amenable number.

451440243620125 is a deficient number, since it is larger than the sum of its proper divisors (131149807796963).

451440243620125 is a wasteful number, since it uses less digits than its factorization.

451440243620125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204029878 (or 204029868 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 43.

Adding to 451440243620125 its reverse (521026342044154), we get a palindrome (972466585664279).

The spelling of 451440243620125 in words is "four hundred fifty-one trillion, four hundred forty billion, two hundred forty-three million, six hundred twenty thousand, one hundred twenty-five".