729976390501642 has 16 divisors (see below), whose sum is σ = 1154350831781952. Its totient is φ = 345519976855680.

The previous prime is 729976390501559. The next prime is 729976390501667. The reversal of 729976390501642 is 246105093679927.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81799232484 + ... + 81799241407.

It is an arithmetic number, because the mean of its divisors is an integer number (72146926986372).

Almost surely, 2^{729976390501642} is an apocalyptic number.

729976390501642 is a deficient number, since it is larger than the sum of its proper divisors (424374441280310).

729976390501642 is a wasteful number, since it uses less digits than its factorization.

729976390501642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163598474013.

The product of its (nonzero) digits is 308629440, while the sum is 70.

The spelling of 729976390501642 in words is "seven hundred twenty-nine trillion, nine hundred seventy-six billion, three hundred ninety million, five hundred one thousand, six hundred forty-two".