838381753509 has 16 divisors (see below), whose sum is σ = 1120545316800. Its totient is φ = 557570155520.

The previous prime is 838381753487. The next prime is 838381753519. The reversal of 838381753509 is 905357183838.

It is a cyclic number.

It is not a de Polignac number, because 838381753509 - 2⁵ = 838381753477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838381753519) 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 in 15 ways as a sum of consecutive naturals, for example, 7361419 + ... + 7474439.

It is an arithmetic number, because the mean of its divisors is an integer number (70034082300).

Almost surely, 2^838381753509 is an apocalyptic number.

It is an amenable number.

838381753509 is a deficient number, since it is larger than the sum of its proper divisors (282163563291).

838381753509 is a wasteful number, since it uses less digits than its factorization.

838381753509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118980.

The product of its (nonzero) digits is 21772800, while the sum is 60.

The spelling of 838381753509 in words is "eight hundred thirty-eight billion, three hundred eighty-one million, seven hundred fifty-three thousand, five hundred nine".