15454031245493 has 2 divisors, whose sum is σ = 15454031245494. Its totient is φ = 15454031245492.

The previous prime is 15454031245403. The next prime is 15454031245663. The reversal of 15454031245493 is 39454213045451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13260616929169 + 2193414316324 = 3641513^2 + 1481018^2 .

It is an emirp because it is prime and its reverse (39454213045451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15454031245493 - 2⁴⁰ = 14354519617717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15454031245403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7727015622746 + 7727015622747.

It is an arithmetic number, because the mean of its divisors is an integer number (7727015622747).

Almost surely, 2^{15454031245493} is an apocalyptic number.

It is an amenable number.

15454031245493 is a deficient number, since it is larger than the sum of its proper divisors (1).

15454031245493 is an equidigital number, since it uses as much as digits as its factorization.

15454031245493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 15454031245493 in words is "fifteen trillion, four hundred fifty-four billion, thirty-one million, two hundred forty-five thousand, four hundred ninety-three".