738078084509 has 4 divisors (see below), whose sum is σ = 748473550560. Its totient is φ = 727682618460.

The previous prime is 738078084493. The next prime is 738078084511. The reversal of 738078084509 is 905480870837.

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: 905480870837 = 101 ⋅8965157137.

It is a cyclic number.

It is not a de Polignac number, because 738078084509 - 2⁴ = 738078084493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (738078084409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5197732919 + ... + 5197733060.

It is an arithmetic number, because the mean of its divisors is an integer number (187118387640).

Almost surely, 2^738078084509 is an apocalyptic number.

It is an amenable number.

738078084509 is a deficient number, since it is larger than the sum of its proper divisors (10395466051).

738078084509 is a wasteful number, since it uses less digits than its factorization.

738078084509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10395466050.

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 738078084509 in words is "seven hundred thirty-eight billion, seventy-eight million, eighty-four thousand, five hundred nine".