19000011000061 has 16 divisors (see below), whose sum is σ = 23386253680384. Its totient is φ = 15031931249664.

The previous prime is 19000011000059. The next prime is 19000011000067. The reversal of 19000011000061 is 16000011000091.

It is not a de Polignac number, because 19000011000061 - 2¹ = 19000011000059 is a prime.

It is a super-2 number, since 2×19000011000061² (a number of 27 digits) contains 22 as substring.

19000011000061 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19000011000067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5935140 + ... + 8557213.

It is an arithmetic number, because the mean of its divisors is an integer number (1461640855024).

Almost surely, 2^{19000011000061} is an apocalyptic number.

It is an amenable number.

19000011000061 is a deficient number, since it is larger than the sum of its proper divisors (4386242680323).

19000011000061 is a wasteful number, since it uses less digits than its factorization.

19000011000061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14506780.

The product of its (nonzero) digits is 54, while the sum is 19.

The spelling of 19000011000061 in words is "nineteen trillion, eleven million, sixty-one", and thus it is an aban number and an uban number.