19998250041 has 32 divisors (see below), whose sum is σ = 34390195200. Its totient is φ = 10030466880.

The previous prime is 19998250039. The next prime is 19998250043. The reversal of 19998250041 is 14005289991.

It is an interprime number because it is at equal distance from previous prime (19998250039) and next prime (19998250043).

It is not a de Polignac number, because 19998250041 - 2¹ = 19998250039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19998250043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1485931 + ... + 1499328.

It is an arithmetic number, because the mean of its divisors is an integer number (1074693600).

Almost surely, 2^19998250041 is an apocalyptic number.

19998250041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19998250041 is a deficient number, since it is larger than the sum of its proper divisors (14391945159).

19998250041 is a wasteful number, since it uses less digits than its factorization.

19998250041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985309.

The product of its (nonzero) digits is 233280, while the sum is 48.

The spelling of 19998250041 in words is "nineteen billion, nine hundred ninety-eight million, two hundred fifty thousand, forty-one".