653990195683 has 4 divisors (see below), whose sum is σ = 713443849848. Its totient is φ = 594536541520.

The previous prime is 653990195669. The next prime is 653990195693. The reversal of 653990195683 is 386591099356.

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 653990195683 - 2⁹ = 653990195171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653990195693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29726827066 + ... + 29726827087.

It is an arithmetic number, because the mean of its divisors is an integer number (178360962462).

Almost surely, 2^653990195683 is an apocalyptic number.

653990195683 is a deficient number, since it is larger than the sum of its proper divisors (59453654165).

653990195683 is a wasteful number, since it uses less digits than its factorization.

653990195683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59453654164.

The product of its (nonzero) digits is 47239200, while the sum is 64.

The spelling of 653990195683 in words is "six hundred fifty-three billion, nine hundred ninety million, one hundred ninety-five thousand, six hundred eighty-three".