19874709498 has 32 divisors (see below), whose sum is σ = 47818851840. Its totient is φ = 5379620400.

The previous prime is 19874709457. The next prime is 19874709509. The reversal of 19874709498 is 89490747891.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12452028 + ... + 12453623.

It is an arithmetic number, because the mean of its divisors is an integer number (1494339120).

Almost surely, 2^19874709498 is an apocalyptic number.

19874709498 is an abundant number, since it is smaller than the sum of its proper divisors (27944142342).

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

19874709498 is a wasteful number, since it uses less digits than its factorization.

19874709498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24905682.

The product of its (nonzero) digits is 36578304, while the sum is 66.

The spelling of 19874709498 in words is "nineteen billion, eight hundred seventy-four million, seven hundred nine thousand, four hundred ninety-eight".