19980150293 has 4 divisors (see below), whose sum is σ = 19980772908. Its totient is φ = 19979527680.

The previous prime is 19980150263. The next prime is 19980150313. The reversal of 19980150293 is 39205108991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3028631089 + 16951519204 = 55033^2 + 130198^2 .

It is a cyclic number.

It is not a de Polignac number, because 19980150293 - 2¹⁴ = 19980133909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19980150233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260396 + ... + 328277.

It is an arithmetic number, because the mean of its divisors is an integer number (4995193227).

Almost surely, 2^19980150293 is an apocalyptic number.

It is an amenable number.

19980150293 is a deficient number, since it is larger than the sum of its proper divisors (622615).

19980150293 is an equidigital number, since it uses as much as digits as its factorization.

19980150293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622614.

The product of its (nonzero) digits is 174960, while the sum is 47.

The spelling of 19980150293 in words is "nineteen billion, nine hundred eighty million, one hundred fifty thousand, two hundred ninety-three".