50918385663 has 12 divisors (see below), whose sum is σ = 73872785688. Its totient is φ = 33796049040.

The previous prime is 50918385653. The next prime is 50918385689. The reversal of 50918385663 is 36658381905.

50918385663 is a `hidden beast` number, since 509 + 1 + 83 + 8 + 56 + 6 + 3 = 666.

It is not a de Polignac number, because 50918385663 - 2⁸ = 50918385407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50918385643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12459628 + ... + 12463713.

It is an arithmetic number, because the mean of its divisors is an integer number (6156065474).

Almost surely, 2^50918385663 is an apocalyptic number.

50918385663 is a deficient number, since it is larger than the sum of its proper divisors (22954400025).

50918385663 is a wasteful number, since it uses less digits than its factorization.

50918385663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24923574 (or 24923571 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 50918385663 in words is "fifty billion, nine hundred eighteen million, three hundred eighty-five thousand, six hundred sixty-three".