1453778793713 has 4 divisors (see below), whose sum is σ = 1493070112500. Its totient is φ = 1414487474928.

The previous prime is 1453778793679. The next prime is 1453778793721. The reversal of 1453778793713 is 3173978773541.

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

It can be written as a sum of positive squares in 2 ways, for example, as 807800095729 + 645978697984 = 898777^2 + 803728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1453778793713 is a prime.

It is a super-2 number, since 2×1453778793713² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1453778793713.

It is not an unprimeable number, because it can be changed into a prime (1453778793773) 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, 19645659338 + ... + 19645659411.

It is an arithmetic number, because the mean of its divisors is an integer number (373267528125).

Almost surely, 2^{1453778793713} is an apocalyptic number.

It is an amenable number.

1453778793713 is a deficient number, since it is larger than the sum of its proper divisors (39291318787).

1453778793713 is an equidigital number, since it uses as much as digits as its factorization.

1453778793713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39291318786.

The product of its digits is 93350880, while the sum is 65.

The spelling of 1453778793713 in words is "one trillion, four hundred fifty-three billion, seven hundred seventy-eight million, seven hundred ninety-three thousand, seven hundred thirteen".