748432459009 has 4 divisors (see below), whose sum is σ = 749707472304. Its totient is φ = 747157445716.

The previous prime is 748432458973. The next prime is 748432459043. The reversal of 748432459009 is 900954234847.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 900954234847 = 124303 ⋅7248049.

It is a cyclic number.

It is not a de Polignac number, because 748432459009 - 2¹³ = 748432450817 is a prime.

It is a super-2 number, since 2×748432459009² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748432457009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637505767 + ... + 637506940.

It is an arithmetic number, because the mean of its divisors is an integer number (187426868076).

Almost surely, 2^748432459009 is an apocalyptic number.

It is an amenable number.

748432459009 is a deficient number, since it is larger than the sum of its proper divisors (1275013295).

748432459009 is a wasteful number, since it uses less digits than its factorization.

748432459009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275013294.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 748432459009 in words is "seven hundred forty-eight billion, four hundred thirty-two million, four hundred fifty-nine thousand, nine".