450081618040 has 32 divisors (see below), whose sum is σ = 1037383245360. Its totient is φ = 175641606400.

The previous prime is 450081618029. The next prime is 450081618043. The reversal of 450081618040 is 40816180054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450081618043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137218366 + ... + 137221645.

Almost surely, 2^450081618040 is an apocalyptic number.

450081618040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450081618040 is an abundant number, since it is smaller than the sum of its proper divisors (587301627320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450081618040 is a wasteful number, since it uses less digits than its factorization.

450081618040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274440063 (or 274440059 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

Adding to 450081618040 its reverse (40816180054), we get a palindrome (490897798094).

The spelling of 450081618040 in words is "four hundred fifty billion, eighty-one million, six hundred eighteen thousand, forty".