32728395029 has 16 divisors (see below), whose sum is σ = 36820931136. Its totient is φ = 28828742400.

The previous prime is 32728394903. The next prime is 32728395101. The reversal of 32728395029 is 92059382723.

It is a de Polignac number, because none of the positive numbers 2^k-32728395029 is a prime.

It is a super-2 number, since 2×32728395029² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32728394029) 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, 68747 + ... + 264920.

It is an arithmetic number, because the mean of its divisors is an integer number (2301308196).

Almost surely, 2^32728395029 is an apocalyptic number.

It is an amenable number.

32728395029 is a deficient number, since it is larger than the sum of its proper divisors (4092536107).

32728395029 is a wasteful number, since it uses less digits than its factorization.

32728395029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333956.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 32728395029 in words is "thirty-two billion, seven hundred twenty-eight million, three hundred ninety-five thousand, twenty-nine".