727779522673 has 32 divisors (see below), whose sum is σ = 870981304320. Its totient is φ = 595101297600.

The previous prime is 727779522647. The next prime is 727779522731. The reversal of 727779522673 is 376225977727.

It is a cyclic number.

It is not a de Polignac number, because 727779522673 - 2⁵ = 727779522641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (727779522073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5790448 + ... + 5914798.

It is an arithmetic number, because the mean of its divisors is an integer number (27218165760).

Almost surely, 2^727779522673 is an apocalyptic number.

It is an amenable number.

727779522673 is a deficient number, since it is larger than the sum of its proper divisors (143201781647).

727779522673 is a wasteful number, since it uses less digits than its factorization.

727779522673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124837.

The product of its digits is 108909360, while the sum is 64.

The spelling of 727779522673 in words is "seven hundred twenty-seven billion, seven hundred seventy-nine million, five hundred twenty-two thousand, six hundred seventy-three".