50663745919 has 2 divisors, whose sum is σ = 50663745920. Its totient is φ = 50663745918.

The previous prime is 50663745893. The next prime is 50663745929. The reversal of 50663745919 is 91954736605.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50663745919 - 2⁷ = 50663745791 is a prime.

It is a super-2 number, since 2×50663745919² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50663745919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50663745929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25331872959 + 25331872960.

It is an arithmetic number, because the mean of its divisors is an integer number (25331872960).

Almost surely, 2^50663745919 is an apocalyptic number.

50663745919 is a deficient number, since it is larger than the sum of its proper divisors (1).

50663745919 is an equidigital number, since it uses as much as digits as its factorization.

50663745919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 50663745919 in words is "fifty billion, six hundred sixty-three million, seven hundred forty-five thousand, nine hundred nineteen".