50621936977 has 2 divisors, whose sum is σ = 50621936978. Its totient is φ = 50621936976.

The previous prime is 50621936933. The next prime is 50621936999. The reversal of 50621936977 is 77963912605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44541680401 + 6080256576 = 211049^2 + 77976^2 .

It is a cyclic number.

It is not a de Polignac number, because 50621936977 - 2³¹ = 48474453329 is a prime.

It is not a weakly prime, because it can be changed into another prime (50621936927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25310968488 + 25310968489.

It is an arithmetic number, because the mean of its divisors is an integer number (25310968489).

Almost surely, 2^50621936977 is an apocalyptic number.

It is an amenable number.

50621936977 is a deficient number, since it is larger than the sum of its proper divisors (1).

50621936977 is an equidigital number, since it uses as much as digits as its factorization.

50621936977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4286520, while the sum is 55.

The spelling of 50621936977 in words is "fifty billion, six hundred twenty-one million, nine hundred thirty-six thousand, nine hundred seventy-seven".