1481728324319 has 4 divisors (see below), whose sum is σ = 1481749020696. Its totient is φ = 1481707627944.

The previous prime is 1481728324313. The next prime is 1481728324333. The reversal of 1481728324319 is 9134238271841.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1481728324319 - 2¹² = 1481728320223 is a prime.

It is a super-2 number, since 2×1481728324319² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481728324313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10240424 + ... + 10384109.

It is an arithmetic number, because the mean of its divisors is an integer number (370437255174).

Almost surely, 2^{1481728324319} is an apocalyptic number.

1481728324319 is a deficient number, since it is larger than the sum of its proper divisors (20696377).

1481728324319 is an equidigital number, since it uses as much as digits as its factorization.

1481728324319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20696376.

The product of its digits is 2322432, while the sum is 53.

The spelling of 1481728324319 in words is "one trillion, four hundred eighty-one billion, seven hundred twenty-eight million, three hundred twenty-four thousand, three hundred nineteen".