1801063729 has 16 divisors (see below), whose sum is σ = 1876577472. Its totient is φ = 1727345088.

The previous prime is 1801063679. The next prime is 1801063739. The reversal of 1801063729 is 9273601081.

It is not a de Polignac number, because 1801063729 - 2¹⁷ = 1800932657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1801063739) 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, 615979 + ... + 618895.

It is an arithmetic number, because the mean of its divisors is an integer number (117286092).

Almost surely, 2^1801063729 is an apocalyptic number.

It is an amenable number.

1801063729 is a deficient number, since it is larger than the sum of its proper divisors (75513743).

1801063729 is a wasteful number, since it uses less digits than its factorization.

1801063729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1801063729 is about 42438.9411861323. The cubic root of 1801063729 is about 1216.6799746923.

The spelling of 1801063729 in words is "one billion, eight hundred one million, sixty-three thousand, seven hundred twenty-nine".