19441248137 has 4 divisors (see below), whose sum is σ = 19492008960. Its totient is φ = 19390487316.

The previous prime is 19441248067. The next prime is 19441248163. The reversal of 19441248137 is 73184214491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19441248137 - 2¹² = 19441244041 is a prime.

It is a super-3 number, since 3×19441248137³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19441241137) 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, 25379837 + ... + 25380602.

It is an arithmetic number, because the mean of its divisors is an integer number (4873002240).

Almost surely, 2^19441248137 is an apocalyptic number.

It is an amenable number.

19441248137 is a deficient number, since it is larger than the sum of its proper divisors (50760823).

19441248137 is an equidigital number, since it uses as much as digits as its factorization.

19441248137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50760822.

The product of its digits is 193536, while the sum is 44.

The spelling of 19441248137 in words is "nineteen billion, four hundred forty-one million, two hundred forty-eight thousand, one hundred thirty-seven".