454189209290 has 8 divisors (see below), whose sum is σ = 817540576740. Its totient is φ = 181675683712.

The previous prime is 454189209283. The next prime is 454189209337. The reversal of 454189209290 is 92902981454.

It can be written as a sum of positive squares in 2 ways, for example, as 450913593001 + 3275616289 = 671501^2 + 57233^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22709460455 + ... + 22709460474.

Almost surely, 2^454189209290 is an apocalyptic number.

454189209290 is a deficient number, since it is larger than the sum of its proper divisors (363351367450).

454189209290 is a wasteful number, since it uses less digits than its factorization.

454189209290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45418920936.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 454189209290 in words is "four hundred fifty-four billion, one hundred eighty-nine million, two hundred nine thousand, two hundred ninety".