747320421727 has 16 divisors (see below), whose sum is σ = 850804445952. Its totient is φ = 649767627520.

The previous prime is 747320421721. The next prime is 747320421737. The reversal of 747320421727 is 727124023747.

It is not a de Polignac number, because 747320421727 - 2⁷ = 747320421599 is a prime.

It is a super-2 number, since 2×747320421727² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747320421721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2044143 + ... + 2381839.

It is an arithmetic number, because the mean of its divisors is an integer number (53175277872).

Almost surely, 2^747320421727 is an apocalyptic number.

747320421727 is a deficient number, since it is larger than the sum of its proper divisors (103484024225).

747320421727 is a wasteful number, since it uses less digits than its factorization.

747320421727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346478.

The product of its (nonzero) digits is 921984, while the sum is 46.

The spelling of 747320421727 in words is "seven hundred forty-seven billion, three hundred twenty million, four hundred twenty-one thousand, seven hundred twenty-seven".