2454442781493 has 4 divisors (see below), whose sum is σ = 3272590375328. Its totient is φ = 1636295187660.

The previous prime is 2454442781477. The next prime is 2454442781519. The reversal of 2454442781493 is 3941872444542.

2454442781493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2454442781493 - 2⁴ = 2454442781477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2454442701493) 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, 409073796913 + ... + 409073796918.

It is an arithmetic number, because the mean of its divisors is an integer number (818147593832).

Almost surely, 2^{2454442781493} is an apocalyptic number.

It is an amenable number.

2454442781493 is a deficient number, since it is larger than the sum of its proper divisors (818147593835).

2454442781493 is an equidigital number, since it uses as much as digits as its factorization.

2454442781493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818147593834.

The product of its digits is 30965760, while the sum is 57.

The spelling of 2454442781493 in words is "two trillion, four hundred fifty-four billion, four hundred forty-two million, seven hundred eighty-one thousand, four hundred ninety-three".