19000069000061 has 8 divisors (see below), whose sum is σ = 19232371380600. Its totient is φ = 18768184807680.

The previous prime is 19000069000049. The next prime is 19000069000093. The reversal of 19000069000061 is 16000096000091.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7109123694436 + 11890945305625 = 2666294^2 + 3448325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19000069000061 - 2¹⁸ = 19000068737917 is a prime.

It is a super-2 number, since 2×19000069000061² (a number of 27 digits) contains 22 as substring.

19000069000061 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19000068999991 and 19000069000027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19000069300061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104455616 + ... + 104637353.

It is an arithmetic number, because the mean of its divisors is an integer number (2404046422575).

Almost surely, 2^{19000069000061} is an apocalyptic number.

It is an amenable number.

19000069000061 is a deficient number, since it is larger than the sum of its proper divisors (232302380539).

19000069000061 is a wasteful number, since it uses less digits than its factorization.

19000069000061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209094079.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 19000069000061 in words is "nineteen trillion, sixty-nine million, sixty-one", and thus it is an aban number and an uban number.