50315013869 has 2 divisors, whose sum is σ = 50315013870. Its totient is φ = 50315013868.

The previous prime is 50315013841. The next prime is 50315013899. The reversal of 50315013869 is 96831051305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46124005225 + 4191008644 = 214765^2 + 64738^2 .

It is a cyclic number.

It is not a de Polignac number, because 50315013869 - 2²⁰ = 50313965293 is a prime.

It is a super-2 number, since 2×50315013869² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50315013899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25157506934 + 25157506935.

It is an arithmetic number, because the mean of its divisors is an integer number (25157506935).

Almost surely, 2^50315013869 is an apocalyptic number.

It is an amenable number.

50315013869 is a deficient number, since it is larger than the sum of its proper divisors (1).

50315013869 is an equidigital number, since it uses as much as digits as its factorization.

50315013869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 50315013869 in words is "fifty billion, three hundred fifteen million, thirteen thousand, eight hundred sixty-nine".