653042512643 has 8 divisors (see below), whose sum is σ = 671168369760. Its totient is φ = 634941711360.

The previous prime is 653042512613. The next prime is 653042512691. The reversal of 653042512643 is 346215240356.

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

It is a cyclic number.

It is not a de Polignac number, because 653042512643 - 2¹⁸ = 653042250499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 653042512643.

It is not an unprimeable number, because it can be changed into a prime (653042512613) 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, 6211103 + ... + 6315368.

It is an arithmetic number, because the mean of its divisors is an integer number (83896046220).

Almost surely, 2^653042512643 is an apocalyptic number.

653042512643 is a deficient number, since it is larger than the sum of its proper divisors (18125857117).

653042512643 is a wasteful number, since it uses less digits than its factorization.

653042512643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12527917.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 653042512643 its reverse (346215240356), we get a palindrome (999257752999).

The spelling of 653042512643 in words is "six hundred fifty-three billion, forty-two million, five hundred twelve thousand, six hundred forty-three".