729976390501643 has 8 divisors (see below), whose sum is σ = 753524329528320. Its totient is φ = 706428471070440.

The previous prime is 729976390501559. The next prime is 729976390501667. The reversal of 729976390501643 is 346105093679927.

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 729976390501643 - 2²⁸ = 729976122066187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729976390504643) 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, 128257538 + ... + 133828056.

It is an arithmetic number, because the mean of its divisors is an integer number (94190541191040).

Almost surely, 2^{729976390501643} is an apocalyptic number.

729976390501643 is a deficient number, since it is larger than the sum of its proper divisors (23547939026677).

729976390501643 is a wasteful number, since it uses less digits than its factorization.

729976390501643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9797737.

The product of its (nonzero) digits is 462944160, while the sum is 71.

The spelling of 729976390501643 in words is "seven hundred twenty-nine trillion, nine hundred seventy-six billion, three hundred ninety million, five hundred one thousand, six hundred forty-three".