4537661567453 has 4 divisors (see below), whose sum is σ = 5185898934240. Its totient is φ = 3889424200668.

The previous prime is 4537661567447. The next prime is 4537661567479. The reversal of 4537661567453 is 3547651667354.

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 not a de Polignac number, because 4537661567453 - 2³⁴ = 4520481698269 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 (4537661587453) 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, 324118683383 + ... + 324118683396.

It is an arithmetic number, because the mean of its divisors is an integer number (1296474733560).

Almost surely, 2^{4537661567453} is an apocalyptic number.

It is an amenable number.

4537661567453 is a deficient number, since it is larger than the sum of its proper divisors (648237366787).

4537661567453 is an equidigital number, since it uses as much as digits as its factorization.

4537661567453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648237366786.

The product of its digits is 190512000, while the sum is 62.

Subtracting from 4537661567453 its reverse (3547651667354), we obtain a palindrome (990009900099).

The spelling of 4537661567453 in words is "four trillion, five hundred thirty-seven billion, six hundred sixty-one million, five hundred sixty-seven thousand, four hundred fifty-three".