18950750069 has 2 divisors, whose sum is σ = 18950750070. Its totient is φ = 18950750068.

The previous prime is 18950750059. The next prime is 18950750099. The reversal of 18950750069 is 96005705981.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13728808900 + 5221941169 = 117170^2 + 72263^2 .

It is a cyclic number.

It is not a de Polignac number, because 18950750069 - 2²⁸ = 18682314613 is a prime.

It is a super-3 number, since 3×18950750069³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18950749999 and 18950750026.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18950750059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9475375034 + 9475375035.

It is an arithmetic number, because the mean of its divisors is an integer number (9475375035).

Almost surely, 2^18950750069 is an apocalyptic number.

It is an amenable number.

18950750069 is a deficient number, since it is larger than the sum of its proper divisors (1).

18950750069 is an equidigital number, since it uses as much as digits as its factorization.

18950750069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 50.

The spelling of 18950750069 in words is "eighteen billion, nine hundred fifty million, seven hundred fifty thousand, sixty-nine".