18755369578009 has 7 divisors (see below), whose sum is σ = 18871143464293. Its totient is φ = 18640305960966.

The previous prime is 18755369577979. The next prime is 18755369578067. The reversal of 18755369578009 is 90087596355781.

The square root of 18755369578009 is 4330747.

The cubic root of 18755369578009 is 26569.

It is a perfect power (a square, a cube, a 6-th power), and thus also a powerful number.

It is not a de Polignac number, because 18755369578009 - 2¹¹ = 18755369575961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18755369578709) 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 6 ways as a sum of consecutive naturals, for example, 115063616962 + ... + 115063617124.

Almost surely, 2^{18755369578009} is an apocalyptic number.

18755369578009 is the 4330747-th square number.

18755369578009 is the 2165374-th centered octagonal number.

It is an amenable number.

18755369578009 is a deficient number, since it is larger than the sum of its proper divisors (115773886284).

18755369578009 is an frugal number, since it uses more digits than its factorization.

18755369578009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 571536000, while the sum is 73.

The spelling of 18755369578009 in words is "eighteen trillion, seven hundred fifty-five billion, three hundred sixty-nine million, five hundred seventy-eight thousand, nine".