747666658729 has 2 divisors, whose sum is σ = 747666658730. Its totient is φ = 747666658728.

The previous prime is 747666658663. The next prime is 747666658793. The reversal of 747666658729 is 927856666747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600705602704 + 146961056025 = 775052^2 + 383355^2 .

It is a cyclic number.

It is not a de Polignac number, because 747666658729 - 2¹³ = 747666650537 is a prime.

It is not a weakly prime, because it can be changed into another prime (747666658799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373833329364 + 373833329365.

It is an arithmetic number, because the mean of its divisors is an integer number (373833329365).

Almost surely, 2^747666658729 is an apocalyptic number.

It is an amenable number.

747666658729 is a deficient number, since it is larger than the sum of its proper divisors (1).

747666658729 is an equidigital number, since it uses as much as digits as its factorization.

747666658729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280240640, while the sum is 73.

The spelling of 747666658729 in words is "seven hundred forty-seven billion, six hundred sixty-six million, six hundred fifty-eight thousand, seven hundred twenty-nine".