19492849293 has 16 divisors (see below), whose sum is σ = 26894622720. Its totient is φ = 12543418944.

The previous prime is 19492849291. The next prime is 19492849307. The reversal of 19492849293 is 39294829491.

It is not a de Polignac number, because 19492849293 - 2¹ = 19492849291 is a prime.

It is a super-2 number, since 2×19492849293² (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 (19492849291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280455 + ... + 342987.

It is an arithmetic number, because the mean of its divisors is an integer number (1680913920).

Almost surely, 2^19492849293 is an apocalyptic number.

It is an amenable number.

19492849293 is a deficient number, since it is larger than the sum of its proper divisors (7401773427).

19492849293 is a wasteful number, since it uses less digits than its factorization.

19492849293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66148.

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

The spelling of 19492849293 in words is "nineteen billion, four hundred ninety-two million, eight hundred forty-nine thousand, two hundred ninety-three".