19496043085 has 4 divisors (see below), whose sum is σ = 23395251708. Its totient is φ = 15596834464.

The previous prime is 19496043053. The next prime is 19496043097. The reversal of 19496043085 is 58034069491.

It is a happy number.

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 4985913321 + 14510129764 = 70611^2 + 120458^2 .

It is a cyclic number.

It is not a de Polignac number, because 19496043085 - 2⁵ = 19496043053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949604304 + ... + 1949604313.

It is an arithmetic number, because the mean of its divisors is an integer number (5848812927).

Almost surely, 2^19496043085 is an apocalyptic number.

It is an amenable number.

19496043085 is a deficient number, since it is larger than the sum of its proper divisors (3899208623).

19496043085 is an equidigital number, since it uses as much as digits as its factorization.

19496043085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899208622.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 19496043085 in words is "nineteen billion, four hundred ninety-six million, forty-three thousand, eighty-five".