450143852890 has 32 divisors (see below), whose sum is σ = 858007941840. Its totient is φ = 169448792064.

The previous prime is 450143852831. The next prime is 450143852903. The reversal of 450143852890 is 98258341054.

It can be written as a sum of positive squares in 8 ways, for example, as 220891540081 + 229252312809 = 469991^2 + 478803^2 .

It is a super-2 number, since 2×450143852890² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1620454 + ... + 1877806.

Almost surely, 2^450143852890 is an apocalyptic number.

450143852890 is a deficient number, since it is larger than the sum of its proper divisors (407864088950).

450143852890 is a wasteful number, since it uses less digits than its factorization.

450143852890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267666.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 450143852890 in words is "four hundred fifty billion, one hundred forty-three million, eight hundred fifty-two thousand, eight hundred ninety".