49636463209 has 4 divisors (see below), whose sum is σ = 49664780116. Its totient is φ = 49608146304.

The previous prime is 49636463203. The next prime is 49636463243. The reversal of 49636463209 is 90236463694.

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 9927133225 + 39709329984 = 99635^2 + 199272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49636463209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49636463203) 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, 14155824 + ... + 14159329.

It is an arithmetic number, because the mean of its divisors is an integer number (12416195029).

Almost surely, 2^49636463209 is an apocalyptic number.

It is an amenable number.

49636463209 is a deficient number, since it is larger than the sum of its proper divisors (28316907).

49636463209 is a wasteful number, since it uses less digits than its factorization.

49636463209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28316906.

The product of its (nonzero) digits is 5038848, while the sum is 52.

The spelling of 49636463209 in words is "forty-nine billion, six hundred thirty-six million, four hundred sixty-three thousand, two hundred nine".