50121742387 has 2 divisors, whose sum is σ = 50121742388. Its totient is φ = 50121742386.

The previous prime is 50121742367. The next prime is 50121742423. The reversal of 50121742387 is 78324712105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50121742387 - 2¹⁵ = 50121709619 is a prime.

It is not a weakly prime, because it can be changed into another prime (50121742357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25060871193 + 25060871194.

It is an arithmetic number, because the mean of its divisors is an integer number (25060871194).

Almost surely, 2^50121742387 is an apocalyptic number.

50121742387 is a deficient number, since it is larger than the sum of its proper divisors (1).

50121742387 is an equidigital number, since it uses as much as digits as its factorization.

50121742387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 50121742387 in words is "fifty billion, one hundred twenty-one million, seven hundred forty-two thousand, three hundred eighty-seven".