747666655729 has 8 divisors (see below), whose sum is σ = 856422596480. Its totient is φ = 639397319616.

The previous prime is 747666655679. The next prime is 747666655787. The reversal of 747666655729 is 927556666747.

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 747666655729 - 2¹⁵ = 747666622961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747666658729) 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, 121647864 + ... + 121654009.

It is an arithmetic number, because the mean of its divisors is an integer number (107052824560).

Almost surely, 2^747666655729 is an apocalyptic number.

It is an amenable number.

747666655729 is a deficient number, since it is larger than the sum of its proper divisors (108755940751).

747666655729 is a wasteful number, since it uses less digits than its factorization.

747666655729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243302319.

The product of its digits is 800150400, while the sum is 70.

The spelling of 747666655729 in words is "seven hundred forty-seven billion, six hundred sixty-six million, six hundred fifty-five thousand, seven hundred twenty-nine".