19621122086 has 16 divisors (see below), whose sum is σ = 29823282240. Its totient is φ = 9680186880.

The previous prime is 19621122077. The next prime is 19621122133. The reversal of 19621122086 is 68022112691.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213446 + ... + 291206.

It is an arithmetic number, because the mean of its divisors is an integer number (1863955140).

Almost surely, 2^19621122086 is an apocalyptic number.

19621122086 is a deficient number, since it is larger than the sum of its proper divisors (10202160154).

19621122086 is a wasteful number, since it uses less digits than its factorization.

19621122086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79439.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 19621122086 in words is "nineteen billion, six hundred twenty-one million, one hundred twenty-two thousand, eighty-six".