49643434693 has 16 divisors (see below), whose sum is σ = 50506283520. Its totient is φ = 48787580016.

The previous prime is 49643434691. The next prime is 49643434747. The reversal of 49643434693 is 39643434694.

It is a cyclic number.

It is not a de Polignac number, because 49643434693 - 2¹ = 49643434691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49643434691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14955688 + ... + 14959006.

It is an arithmetic number, because the mean of its divisors is an integer number (3156642720).

Almost surely, 2^49643434693 is an apocalyptic number.

It is an amenable number.

49643434693 is a deficient number, since it is larger than the sum of its proper divisors (862848827).

49643434693 is a wasteful number, since it uses less digits than its factorization.

49643434693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296.

The product of its digits is 20155392, while the sum is 55.

Subtracting from 49643434693 its reverse (39643434694), we obtain a palindrome (9999999999).

The spelling of 49643434693 in words is "forty-nine billion, six hundred forty-three million, four hundred thirty-four thousand, six hundred ninety-three".