19886126086 has 8 divisors (see below), whose sum is σ = 29952962424. Its totient is φ = 9901805280.

The previous prime is 19886126083. The next prime is 19886126101. The reversal of 19886126086 is 68062168891.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19886126083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20628280 + ... + 20629243.

It is an arithmetic number, because the mean of its divisors is an integer number (3744120303).

Almost surely, 2^19886126086 is an apocalyptic number.

19886126086 is a deficient number, since it is larger than the sum of its proper divisors (10066836338).

19886126086 is a wasteful number, since it uses less digits than its factorization.

19886126086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41257766.

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 19886126086 in words is "nineteen billion, eight hundred eighty-six million, one hundred twenty-six thousand, eighty-six".