729478882669 has 4 divisors (see below), whose sum is σ = 729521954496. Its totient is φ = 729435810844.

The previous prime is 729478882663. The next prime is 729478882673. The reversal of 729478882669 is 966288874927.

729478882669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 966288874927 = 1213 ⋅796610779.

It is a cyclic number.

It is not a de Polignac number, because 729478882669 - 2⁵ = 729478882637 is a prime.

It is a super-2 number, since 2×729478882669² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 729478882595 and 729478882604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729478882663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21510499 + ... + 21544384.

It is an arithmetic number, because the mean of its divisors is an integer number (182380488624).

Almost surely, 2^729478882669 is an apocalyptic number.

It is an amenable number.

729478882669 is a deficient number, since it is larger than the sum of its proper divisors (43071827).

729478882669 is a wasteful number, since it uses less digits than its factorization.

729478882669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43071826.

The product of its digits is 1170505728, while the sum is 76.

The spelling of 729478882669 in words is "seven hundred twenty-nine billion, four hundred seventy-eight million, eight hundred eighty-two thousand, six hundred sixty-nine".