8131458214853 has 4 divisors (see below), whose sum is σ = 8411853325740. Its totient is φ = 7851063103968.

The previous prime is 8131458214823. The next prime is 8131458214897. The reversal of 8131458214853 is 3584128541318.

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 2685871932769 + 5445586282084 = 1638863^2 + 2333578^2 .

It is a cyclic number.

It is not a de Polignac number, because 8131458214853 - 2²² = 8131454020549 is a prime.

It is a super-2 number, since 2×8131458214853² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8131458214795 and 8131458214804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8131458214823) 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, 140197555400 + ... + 140197555457.

It is an arithmetic number, because the mean of its divisors is an integer number (2102963331435).

Almost surely, 2^{8131458214853} is an apocalyptic number.

It is an amenable number.

8131458214853 is a deficient number, since it is larger than the sum of its proper divisors (280395110887).

8131458214853 is a wasteful number, since it uses less digits than its factorization.

8131458214853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280395110886.

The product of its digits is 3686400, while the sum is 53.

The spelling of 8131458214853 in words is "eight trillion, one hundred thirty-one billion, four hundred fifty-eight million, two hundred fourteen thousand, eight hundred fifty-three".