50428628993 has 2 divisors, whose sum is σ = 50428628994. Its totient is φ = 50428628992.

The previous prime is 50428628927. The next prime is 50428629007. The reversal of 50428628993 is 39982682405.

50428628993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39916843264 + 10511785729 = 199792^2 + 102527^2 .

It is a cyclic number.

It is not a de Polignac number, because 50428628993 - 2⁸ = 50428628737 is a prime.

It is a super-2 number, since 2×50428628993² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (50428628923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25214314496 + 25214314497.

It is an arithmetic number, because the mean of its divisors is an integer number (25214314497).

Almost surely, 2^50428628993 is an apocalyptic number.

It is an amenable number.

50428628993 is a deficient number, since it is larger than the sum of its proper divisors (1).

50428628993 is an equidigital number, since it uses as much as digits as its factorization.

50428628993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 50428628993 in words is "fifty billion, four hundred twenty-eight million, six hundred twenty-eight thousand, nine hundred ninety-three".