53817441643 has 4 divisors (see below), whose sum is σ = 61505647600. Its totient is φ = 46129235688.

The previous prime is 53817441589. The next prime is 53817441647. The reversal of 53817441643 is 34614471835.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53817441643 - 2⁹ = 53817441131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53817441593 and 53817441602.

It is not an unprimeable number, because it can be changed into a prime (53817441647) 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, 3844102968 + ... + 3844102981.

It is an arithmetic number, because the mean of its divisors is an integer number (15376411900).

Almost surely, 2^53817441643 is an apocalyptic number.

53817441643 is a deficient number, since it is larger than the sum of its proper divisors (7688205957).

53817441643 is an equidigital number, since it uses as much as digits as its factorization.

53817441643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7688205956.

The product of its digits is 967680, while the sum is 46.

The spelling of 53817441643 in words is "fifty-three billion, eight hundred seventeen million, four hundred forty-one thousand, six hundred forty-three".