49686849577 has 4 divisors (see below), whose sum is σ = 50315797120. Its totient is φ = 49057902036.

The previous prime is 49686849571. The next prime is 49686849581. The reversal of 49686849577 is 77594868694.

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 49686849577 - 2⁷ = 49686849449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49686849571) 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, 314473653 + ... + 314473810.

It is an arithmetic number, because the mean of its divisors is an integer number (12578949280).

Almost surely, 2^49686849577 is an apocalyptic number.

It is an amenable number.

49686849577 is a deficient number, since it is larger than the sum of its proper divisors (628947543).

49686849577 is an equidigital number, since it uses as much as digits as its factorization.

49686849577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628947542.

The product of its digits is 731566080, while the sum is 73.

The spelling of 49686849577 in words is "forty-nine billion, six hundred eighty-six million, eight hundred forty-nine thousand, five hundred seventy-seven".