39452081653 has 4 divisors (see below), whose sum is σ = 40369571968. Its totient is φ = 38534591340.

The previous prime is 39452081651. The next prime is 39452081729. The reversal of 39452081653 is 35618025493.

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 39452081653 - 2¹ = 39452081651 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 (39452081651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458745093 + ... + 458745178.

It is an arithmetic number, because the mean of its divisors is an integer number (10092392992).

Almost surely, 2^39452081653 is an apocalyptic number.

It is an amenable number.

39452081653 is a deficient number, since it is larger than the sum of its proper divisors (917490315).

39452081653 is an equidigital number, since it uses as much as digits as its factorization.

39452081653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917490314.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 39452081653 in words is "thirty-nine billion, four hundred fifty-two million, eighty-one thousand, six hundred fifty-three".