49679287849 has 4 divisors (see below), whose sum is σ = 50161611136. Its totient is φ = 49196964564.

The previous prime is 49679287813. The next prime is 49679287877. The reversal of 49679287849 is 94878297694.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49679287849 - 2⁹ = 49679287337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49679287349) 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 in 3 ways as a sum of consecutive naturals, for example, 241161489 + ... + 241161694.

It is an arithmetic number, because the mean of its divisors is an integer number (12540402784).

Almost surely, 2^49679287849 is an apocalyptic number.

It is an amenable number.

49679287849 is a deficient number, since it is larger than the sum of its proper divisors (482323287).

49679287849 is a wasteful number, since it uses less digits than its factorization.

49679287849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482323286.

The product of its digits is 438939648, while the sum is 73.

The spelling of 49679287849 in words is "forty-nine billion, six hundred seventy-nine million, two hundred eighty-seven thousand, eight hundred forty-nine".