50487338861 has 2 divisors, whose sum is σ = 50487338862. Its totient is φ = 50487338860.

The previous prime is 50487338849. The next prime is 50487338933. The reversal of 50487338861 is 16883378405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49994276836 + 493062025 = 223594^2 + 22205^2 .

It is a cyclic number.

It is not a de Polignac number, because 50487338861 - 2¹⁰ = 50487337837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50487338831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25243669430 + 25243669431.

It is an arithmetic number, because the mean of its divisors is an integer number (25243669431).

Almost surely, 2^50487338861 is an apocalyptic number.

It is an amenable number.

50487338861 is a deficient number, since it is larger than the sum of its proper divisors (1).

50487338861 is an equidigital number, since it uses as much as digits as its factorization.

50487338861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 50487338861 in words is "fifty billion, four hundred eighty-seven million, three hundred thirty-eight thousand, eight hundred sixty-one".