454519987994 has 8 divisors (see below), whose sum is σ = 721884686868. Its totient is φ = 213891759040.

The previous prime is 454519987993. The next prime is 454519988029. The reversal of 454519987994 is 499789915454.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 434458948225 + 20061039769 = 659135^2 + 141637^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (454519987993) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6684117437 + ... + 6684117504.

Almost surely, 2^454519987994 is an apocalyptic number.

454519987994 is a deficient number, since it is larger than the sum of its proper divisors (267364698874).

454519987994 is a wasteful number, since it uses less digits than its factorization.

454519987994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13368234960.

The product of its digits is 587865600, while the sum is 74.

The spelling of 454519987994 in words is "four hundred fifty-four billion, five hundred nineteen million, nine hundred eighty-seven thousand, nine hundred ninety-four".