19742046086 has 16 divisors (see below), whose sum is σ = 33845319936. Its totient is φ = 8460423816.

The previous prime is 19742046031. The next prime is 19742046133. The reversal of 19742046086 is 68064024791.

It is a self number, because there is not a number n which added to its sum of digits gives 19742046086.

It is a congruent number.

It is an unprimeable number.

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, 452735 + ... + 494421.

It is an arithmetic number, because the mean of its divisors is an integer number (2115332496).

Almost surely, 2^19742046086 is an apocalyptic number.

19742046086 is a deficient number, since it is larger than the sum of its proper divisors (14103273850).

19742046086 is a wasteful number, since it uses less digits than its factorization.

19742046086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75523.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 19742046086 in words is "nineteen billion, seven hundred forty-two million, forty-six thousand, eighty-six".