729670405856 has 48 divisors (see below), whose sum is σ = 1644411000960. Its totient is φ = 312210633600.

The previous prime is 729670405831. The next prime is 729670405859. The reversal of 729670405856 is 658504076927.

It is a junction number, because it is equal to n+sod(n) for n = 729670405795 and 729670405804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729670405859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2492570 + ... + 2769881.

It is an arithmetic number, because the mean of its divisors is an integer number (34258562520).

Almost surely, 2^729670405856 is an apocalyptic number.

It is an amenable number.

729670405856 is an abundant number, since it is smaller than the sum of its proper divisors (914740595104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729670405856 is a wasteful number, since it uses less digits than its factorization.

729670405856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263087 (or 5263079 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 59.

The spelling of 729670405856 in words is "seven hundred twenty-nine billion, six hundred seventy million, four hundred five thousand, eight hundred fifty-six".