19942603719 has 16 divisors (see below), whose sum is σ = 26686716000. Its totient is φ = 13246839936.

The previous prime is 19942603717. The next prime is 19942603781. The reversal of 19942603719 is 91730624991.

It is not a de Polignac number, because 19942603719 - 2¹ = 19942603717 is a prime.

It is a super-2 number, since 2×19942603719² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19942603717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1514737 + ... + 1527845.

It is an arithmetic number, because the mean of its divisors is an integer number (1667919750).

Almost surely, 2^19942603719 is an apocalyptic number.

19942603719 is a deficient number, since it is larger than the sum of its proper divisors (6744112281).

19942603719 is a wasteful number, since it uses less digits than its factorization.

19942603719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14914.

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 19942603719 in words is "nineteen billion, nine hundred forty-two million, six hundred three thousand, seven hundred nineteen".