53653340720643 has 8 divisors (see below), whose sum is σ = 71543787657408. Its totient is φ = 35765893798824.

The previous prime is 53653340720633. The next prime is 53653340720647. The reversal of 53653340720643 is 34602704335635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53653340720643 - 2⁹ = 53653340720131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53653340720647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749962005 + ... + 750033542.

It is an arithmetic number, because the mean of its divisors is an integer number (8942973457176).

Almost surely, 2^{53653340720643} is an apocalyptic number.

53653340720643 is a deficient number, since it is larger than the sum of its proper divisors (17890446936765).

53653340720643 is a wasteful number, since it uses less digits than its factorization.

53653340720643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500007473.

The product of its (nonzero) digits is 16329600, while the sum is 51.

The spelling of 53653340720643 in words is "fifty-three trillion, six hundred fifty-three billion, three hundred forty million, seven hundred twenty thousand, six hundred forty-three".