49755791977 has 2 divisors, whose sum is σ = 49755791978. Its totient is φ = 49755791976.

The previous prime is 49755791971. The next prime is 49755791999. The reversal of 49755791977 is 77919755794.

49755791977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43355151961 + 6400640016 = 208219^2 + 80004^2 .

It is a cyclic number.

It is not a de Polignac number, because 49755791977 - 2¹¹ = 49755789929 is a prime.

It is not a weakly prime, because it can be changed into another prime (49755791971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24877895988 + 24877895989.

It is an arithmetic number, because the mean of its divisors is an integer number (24877895989).

Almost surely, 2^49755791977 is an apocalyptic number.

It is an amenable number.

49755791977 is a deficient number, since it is larger than the sum of its proper divisors (1).

49755791977 is an equidigital number, since it uses as much as digits as its factorization.

49755791977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 175032900, while the sum is 70.

The spelling of 49755791977 in words is "forty-nine billion, seven hundred fifty-five million, seven hundred ninety-one thousand, nine hundred seventy-seven".