989446000729 has 8 divisors (see below), whose sum is σ = 994308569120. Its totient is φ = 984585067200.

The previous prime is 989446000717. The next prime is 989446000769. The reversal of 989446000729 is 927000644989.

989446000729 = T₈₁₂₁₇₅ + T₈₁₂₁₇₆ + T₈₁₂₁₇₇.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 989446000729 - 2¹⁹ = 989445476441 is a prime.

It is a super-2 number, since 2×989446000729² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989446000769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813649 + ... + 1625089.

It is an arithmetic number, because the mean of its divisors is an integer number (124288571140).

Almost surely, 2^989446000729 is an apocalyptic number.

989446000729 is the 812177-th centered triangular number.

It is an amenable number.

989446000729 is a deficient number, since it is larger than the sum of its proper divisors (4862568391).

989446000729 is a wasteful number, since it uses less digits than its factorization.

989446000729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817431.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 989446000729 in words is "nine hundred eighty-nine billion, four hundred forty-six million, seven hundred twenty-nine", and thus it is an aban number.