50865940070381 has 2 divisors, whose sum is σ = 50865940070382. Its totient is φ = 50865940070380.

The previous prime is 50865940070371. The next prime is 50865940070417. The reversal of 50865940070381 is 18307004956805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44127456122500 + 6738483947881 = 6642850^2 + 2595859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50865940070381 is a prime.

It is a super-2 number, since 2×50865940070381² (a number of 28 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 (50865940070371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25432970035190 + 25432970035191.

It is an arithmetic number, because the mean of its divisors is an integer number (25432970035191).

Almost surely, 2^{50865940070381} is an apocalyptic number.

It is an amenable number.

50865940070381 is a deficient number, since it is larger than the sum of its proper divisors (1).

50865940070381 is an equidigital number, since it uses as much as digits as its factorization.

50865940070381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 50865940070381 in words is "fifty trillion, eight hundred sixty-five billion, nine hundred forty million, seventy thousand, three hundred eighty-one".