450129447125 has 16 divisors (see below), whose sum is σ = 562980193776. Its totient is φ = 359322376000.

The previous prime is 450129447109. The next prime is 450129447181. The reversal of 450129447125 is 521744921054.

It can be written as a sum of positive squares in 8 ways, for example, as 77182285489 + 372947161636 = 277817^2 + 610694^2 .

It is not a de Polignac number, because 450129447125 - 2⁴ = 450129447109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3848054 + ... + 3963303.

It is an arithmetic number, because the mean of its divisors is an integer number (35186262111).

Almost surely, 2^450129447125 is an apocalyptic number.

It is an amenable number.

450129447125 is a deficient number, since it is larger than the sum of its proper divisors (112850746651).

450129447125 is an equidigital number, since it uses as much as digits as its factorization.

450129447125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811833 (or 7811823 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 450129447125 in words is "four hundred fifty billion, one hundred twenty-nine million, four hundred forty-seven thousand, one hundred twenty-five".