53434689729 has 64 divisors (see below), whose sum is σ = 78449817600. Its totient is φ = 32233324032.

The previous prime is 53434689727. The next prime is 53434689779. The reversal of 53434689729 is 92798643435.

It is not a de Polignac number, because 53434689729 - 2¹ = 53434689727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53434689727) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57026949 + ... + 57027885.

It is an arithmetic number, because the mean of its divisors is an integer number (1225778400).

Almost surely, 2^53434689729 is an apocalyptic number.

It is an amenable number.

53434689729 is a deficient number, since it is larger than the sum of its proper divisors (25015127871).

53434689729 is a wasteful number, since it uses less digits than its factorization.

53434689729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494.

The product of its digits is 39191040, while the sum is 60.

The spelling of 53434689729 in words is "fifty-three billion, four hundred thirty-four million, six hundred eighty-nine thousand, seven hundred twenty-nine".