49486611577 has 4 divisors (see below), whose sum is σ = 53293274020. Its totient is φ = 45679949136.

The previous prime is 49486611521. The next prime is 49486611589. The reversal of 49486611577 is 77511668494.

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 22531210816 + 26955400761 = 150104^2 + 164181^2 .

It is a cyclic number.

It is not a de Polignac number, because 49486611577 - 2¹⁹ = 49486087289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49486612577) 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, 1903331202 + ... + 1903331227.

It is an arithmetic number, because the mean of its divisors is an integer number (13323318505).

Almost surely, 2^49486611577 is an apocalyptic number.

It is an amenable number.

49486611577 is a deficient number, since it is larger than the sum of its proper divisors (3806662443).

49486611577 is a wasteful number, since it uses less digits than its factorization.

49486611577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806662442.

The product of its digits is 10160640, while the sum is 58.

The spelling of 49486611577 in words is "forty-nine billion, four hundred eighty-six million, six hundred eleven thousand, five hundred seventy-seven".