49686288479 has 2 divisors, whose sum is σ = 49686288480. Its totient is φ = 49686288478.

The previous prime is 49686288419. The next prime is 49686288511. The reversal of 49686288479 is 97488268694.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49686288479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49686288419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24843144239 + 24843144240.

It is an arithmetic number, because the mean of its divisors is an integer number (24843144240).

Almost surely, 2^49686288479 is an apocalyptic number.

49686288479 is a deficient number, since it is larger than the sum of its proper divisors (1).

49686288479 is an equidigital number, since it uses as much as digits as its factorization.

49686288479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 334430208, while the sum is 71.

The spelling of 49686288479 in words is "forty-nine billion, six hundred eighty-six million, two hundred eighty-eight thousand, four hundred seventy-nine".