50370787777 has 2 divisors, whose sum is σ = 50370787778. Its totient is φ = 50370787776.

The previous prime is 50370787769. The next prime is 50370787787. The reversal of 50370787777 is 77778707305.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50265191601 + 105596176 = 224199^2 + 10276^2 .

It is a cyclic number.

It is not a de Polignac number, because 50370787777 - 2³ = 50370787769 is a prime.

It is a super-2 number, since 2×50370787777² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50370787757) 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, 25185393888 + 25185393889.

It is an arithmetic number, because the mean of its divisors is an integer number (25185393889).

Almost surely, 2^50370787777 is an apocalyptic number.

It is an amenable number.

50370787777 is a deficient number, since it is larger than the sum of its proper divisors (1).

50370787777 is an equidigital number, since it uses as much as digits as its factorization.

50370787777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14117880, while the sum is 58.

The spelling of 50370787777 in words is "fifty billion, three hundred seventy million, seven hundred eighty-seven thousand, seven hundred seventy-seven".