747123395749 has 2 divisors, whose sum is σ = 747123395750. Its totient is φ = 747123395748.

The previous prime is 747123395743. The next prime is 747123395789. The reversal of 747123395749 is 947593321747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 629512122724 + 117611273025 = 793418^2 + 342945^2 .

It is a cyclic number.

It is not a de Polignac number, because 747123395749 - 2⁷ = 747123395621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747123395743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373561697874 + 373561697875.

It is an arithmetic number, because the mean of its divisors is an integer number (373561697875).

Almost surely, 2^747123395749 is an apocalyptic number.

It is an amenable number.

747123395749 is a deficient number, since it is larger than the sum of its proper divisors (1).

747123395749 is an equidigital number, since it uses as much as digits as its factorization.

747123395749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40007520, while the sum is 61.

The spelling of 747123395749 in words is "seven hundred forty-seven billion, one hundred twenty-three million, three hundred ninety-five thousand, seven hundred forty-nine".