19498349514 has 64 divisors (see below), whose sum is σ = 45974771712. Its totient is φ = 5397796800.

The previous prime is 19498349501. The next prime is 19498349543. The reversal of 19498349514 is 41594389491.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114859 + ... + 228449.

It is an arithmetic number, because the mean of its divisors is an integer number (718355808).

Almost surely, 2^19498349514 is an apocalyptic number.

19498349514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19498349514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22987385856).

19498349514 is an abundant number, since it is smaller than the sum of its proper divisors (26476422198).

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

19498349514 is a wasteful number, since it uses less digits than its factorization.

19498349514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113731.

The product of its digits is 5598720, while the sum is 57.

The spelling of 19498349514 in words is "nineteen billion, four hundred ninety-eight million, three hundred forty-nine thousand, five hundred fourteen".