19552281249 has 8 divisors (see below), whose sum is σ = 26399704960. Its totient is φ = 12869855856.

The previous prime is 19552281143. The next prime is 19552281271. The reversal of 19552281249 is 94218225591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19552281249 - 2¹² = 19552277153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19552281198 and 19552281207.

It is not an unprimeable number, because it can be changed into a prime (19552283249) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41249302 + ... + 41249775.

It is an arithmetic number, because the mean of its divisors is an integer number (3299963120).

Almost surely, 2^19552281249 is an apocalyptic number.

It is an amenable number.

19552281249 is a deficient number, since it is larger than the sum of its proper divisors (6847423711).

19552281249 is an equidigital number, since it uses as much as digits as its factorization.

19552281249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82499159.

The product of its digits is 518400, while the sum is 48.

The spelling of 19552281249 in words is "nineteen billion, five hundred fifty-two million, two hundred eighty-one thousand, two hundred forty-nine".