19399853090 has 16 divisors (see below), whose sum is σ = 35013360888. Its totient is φ = 7739135616.

The previous prime is 19399853047. The next prime is 19399853107. The reversal of 19399853090 is 9035899391.

It can be written as a sum of positive squares in 4 ways, for example, as 9739518721 + 9660334369 = 98689^2 + 98287^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2596787 + ... + 2604246.

Almost surely, 2^19399853090 is an apocalyptic number.

19399853090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19399853090 is a deficient number, since it is larger than the sum of its proper divisors (15613507798).

19399853090 is a wasteful number, since it uses less digits than its factorization.

19399853090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201413.

The product of its (nonzero) digits is 2361960, while the sum is 56.

The spelling of 19399853090 in words is "nineteen billion, three hundred ninety-nine million, eight hundred fifty-three thousand, ninety".