19618084696139 has 8 divisors (see below), whose sum is σ = 20651007362640. Its totient is φ = 18585201218976.

The previous prime is 19618084696129. The next prime is 19618084696151. The reversal of 19618084696139 is 93169648081691.

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 19618084696139 - 2⁴ = 19618084696123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19618084696129) 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, 8767004 + ... + 10774809.

It is an arithmetic number, because the mean of its divisors is an integer number (2581375920330).

Almost surely, 2^{19618084696139} is an apocalyptic number.

19618084696139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

19618084696139 is a deficient number, since it is larger than the sum of its proper divisors (1032922666501).

19618084696139 is a wasteful number, since it uses less digits than its factorization.

19618084696139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19594669.

The product of its (nonzero) digits is 120932352, while the sum is 71.

The spelling of 19618084696139 in words is "nineteen trillion, six hundred eighteen billion, eighty-four million, six hundred ninety-six thousand, one hundred thirty-nine".