19492986066 has 16 divisors (see below), whose sum is σ = 38987347584. Its totient is φ = 6497432784.

The previous prime is 19492985971. The next prime is 19492986067. The reversal of 19492986066 is 66068929491.

It is not an unprimeable number, because it can be changed into a prime (19492986067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276420 + ... + 339696.

It is an arithmetic number, because the mean of its divisors is an integer number (2436709224).

Almost surely, 2^19492986066 is an apocalyptic number.

19492986066 is an abundant number, since it is smaller than the sum of its proper divisors (19494361518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19492986066 is a wasteful number, since it uses less digits than its factorization.

19492986066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114625.

The product of its (nonzero) digits is 10077696, while the sum is 60.

The spelling of 19492986066 in words is "nineteen billion, four hundred ninety-two million, nine hundred eighty-six thousand, sixty-six".