49089085209 has 10 divisors (see below), whose sum is σ = 73330608890. Its totient is φ = 32726056752.

The previous prime is 49089085207. The next prime is 49089085211. The reversal of 49089085209 is 90258098094.

It is an interprime number because it is at equal distance from previous prime (49089085207) and next prime (49089085211).

It can be written as a sum of positive squares in only one way, i.e., 44523110025 + 4565975184 = 211005^2 + 67572^2 .

It is not a de Polignac number, because 49089085209 - 2¹ = 49089085207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49089085207) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 303018964 + ... + 303019125.

It is an arithmetic number, because the mean of its divisors is an integer number (7333060889).

Almost surely, 2^49089085209 is an apocalyptic number.

It is an amenable number.

49089085209 is a deficient number, since it is larger than the sum of its proper divisors (24241523681).

49089085209 is an equidigital number, since it uses as much as digits as its factorization.

49089085209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606038101 (or 606038092 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 49089085209 in words is "forty-nine billion, eighty-nine million, eighty-five thousand, two hundred nine".