8540894489453 has 4 divisors (see below), whose sum is σ = 8540909475840. Its totient is φ = 8540879503068.

The previous prime is 8540894489431. The next prime is 8540894489459. The reversal of 8540894489453 is 3549844980458.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8540894489453 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 (8540894489459) 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, 6603083 + ... + 7789896.

It is an arithmetic number, because the mean of its divisors is an integer number (2135227368960).

Almost surely, 2^{8540894489453} is an apocalyptic number.

It is an amenable number.

8540894489453 is a deficient number, since it is larger than the sum of its proper divisors (14986387).

8540894489453 is a wasteful number, since it uses less digits than its factorization.

8540894489453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14986386.

The product of its (nonzero) digits is 796262400, while the sum is 71.

The spelling of 8540894489453 in words is "eight trillion, five hundred forty billion, eight hundred ninety-four million, four hundred eighty-nine thousand, four hundred fifty-three".