1612793078453 has 8 divisors (see below), whose sum is σ = 1624334587800. Its totient is φ = 1601284405248.

The previous prime is 1612793078431. The next prime is 1612793078467. The reversal of 1612793078453 is 3548703972161.

It can be written as a sum of positive squares in 4 ways, for example, as 82074801169 + 1530718277284 = 286487^2 + 1237222^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1612793078453 - 2²⁸ = 1612524642997 is a prime.

It is a super-2 number, since 2×1612793078453² (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 (1612793078473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8110448 + ... + 8306921.

It is an arithmetic number, because the mean of its divisors is an integer number (203041823475).

It is a 1-persistent number, because it is pandigital, but 2⋅1612793078453 = 3225586156906 is not.

Almost surely, 2^{1612793078453} is an apocalyptic number.

It is an amenable number.

1612793078453 is a deficient number, since it is larger than the sum of its proper divisors (11541509347).

1612793078453 is a wasteful number, since it uses less digits than its factorization.

1612793078453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16418071.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 1612793078453 in words is "one trillion, six hundred twelve billion, seven hundred ninety-three million, seventy-eight thousand, four hundred fifty-three".