63253443785 has 16 divisors (see below), whose sum is σ = 86864368896. Its totient is φ = 43315395648.

The previous prime is 63253443779. The next prime is 63253443797. The reversal of 63253443785 is 58734435236.

It is a happy number.

It is not a de Polignac number, because 63253443785 - 2⁸ = 63253443529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1190174 + ... + 1242183.

It is an arithmetic number, because the mean of its divisors is an integer number (5429023056).

Almost surely, 2^63253443785 is an apocalyptic number.

It is an amenable number.

63253443785 is a deficient number, since it is larger than the sum of its proper divisors (23610925111).

63253443785 is a wasteful number, since it uses less digits than its factorization.

63253443785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433112.

The product of its digits is 7257600, while the sum is 50.

The spelling of 63253443785 in words is "sixty-three billion, two hundred fifty-three million, four hundred forty-three thousand, seven hundred eighty-five".