19900990298 has 64 divisors (see below), whose sum is σ = 36633876480. Its totient is φ = 7918948800.

The previous prime is 19900990289. The next prime is 19900990301. The reversal of 19900990298 is 89209900991.

It is a super-3 number, since 3×19900990298³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3264233 + ... + 3270323.

It is an arithmetic number, because the mean of its divisors is an integer number (572404320).

Almost surely, 2^19900990298 is an apocalyptic number.

19900990298 is a deficient number, since it is larger than the sum of its proper divisors (16732886182).

19900990298 is a wasteful number, since it uses less digits than its factorization.

19900990298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6363.

The product of its (nonzero) digits is 944784, while the sum is 56.

The spelling of 19900990298 in words is "nineteen billion, nine hundred million, nine hundred ninety thousand, two hundred ninety-eight".