729201240128 has 56 divisors (see below), whose sum is σ = 1454341215264. Its totient is φ = 362754201600.

The previous prime is 729201240109. The next prime is 729201240137. The reversal of 729201240128 is 821042102927.

It is a junction number, because it is equal to n+sod(n) for n = 729201240091 and 729201240100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53293448 + ... + 53307128.

It is an arithmetic number, because the mean of its divisors is an integer number (25970378844).

Almost surely, 2^729201240128 is an apocalyptic number.

It is an amenable number.

729201240128 is a deficient number, since it is larger than the sum of its proper divisors (725139975136).

729201240128 is a wasteful number, since it uses less digits than its factorization.

729201240128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17851 (or 17841 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 729201240128 in words is "seven hundred twenty-nine billion, two hundred one million, two hundred forty thousand, one hundred twenty-eight".