1453321643505 has 16 divisors (see below), whose sum is σ = 2369188491840. Its totient is φ = 760480255808.

The previous prime is 1453321643419. The next prime is 1453321643549. The reversal of 1453321643505 is 5053461233541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1453321643505 - 2²¹ = 1453319546353 is a prime.

It is a super-2 number, since 2×1453321643505² (a number of 25 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, 914037975 + ... + 914039564.

It is an arithmetic number, because the mean of its divisors is an integer number (148074280740).

Almost surely, 2^{1453321643505} is an apocalyptic number.

1453321643505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1453321643505 is a deficient number, since it is larger than the sum of its proper divisors (915866848335).

1453321643505 is a wasteful number, since it uses less digits than its factorization.

1453321643505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828077600.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 1453321643505 in words is "one trillion, four hundred fifty-three billion, three hundred twenty-one million, six hundred forty-three thousand, five hundred five".