727428831686722 has 16 divisors (see below), whose sum is σ = 1190338509459744. Its totient is φ = 330649351936000.

The previous prime is 727428831686693. The next prime is 727428831686723. The reversal of 727428831686722 is 227686138824727.

It is a super-2 number, since 2×727428831686722² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (727428831686723) 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, 101504322 + ... + 108434242.

It is an arithmetic number, because the mean of its divisors is an integer number (74396156841234).

Almost surely, 2^{727428831686722} is an apocalyptic number.

727428831686722 is a deficient number, since it is larger than the sum of its proper divisors (462909677773022).

727428831686722 is a wasteful number, since it uses less digits than its factorization.

727428831686722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11701265.

The product of its digits is 1213857792, while the sum is 73.

The spelling of 727428831686722 in words is "seven hundred twenty-seven trillion, four hundred twenty-eight billion, eight hundred thirty-one million, six hundred eighty-six thousand, seven hundred twenty-two".