49121220193 has 4 divisors (see below), whose sum is σ = 49124410308. Its totient is φ = 49118030080.

The previous prime is 49121220179. The next prime is 49121220209. The reversal of 49121220193 is 39102212194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39102212194 = 2 ⋅19551106097.

It can be written as a sum of positive squares in 2 ways, for example, as 38821609024 + 10299611169 = 197032^2 + 101487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49121220193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49121220103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571848 + ... + 1602793.

It is an arithmetic number, because the mean of its divisors is an integer number (12281102577).

Almost surely, 2^49121220193 is an apocalyptic number.

It is an amenable number.

49121220193 is a deficient number, since it is larger than the sum of its proper divisors (3190115).

49121220193 is a wasteful number, since it uses less digits than its factorization.

49121220193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190114.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 49121220193 in words is "forty-nine billion, one hundred twenty-one million, two hundred twenty thousand, one hundred ninety-three".