50510101010989 has 2 divisors, whose sum is σ = 50510101010990. Its totient is φ = 50510101010988.

The previous prime is 50510101010977. The next prime is 50510101011037. The reversal of 50510101010989 is 98901010101505.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43422169202500 + 7087931808489 = 6589550^2 + 2662317^2 .

It is a cyclic number.

It is not a de Polignac number, because 50510101010989 - 2¹⁹ = 50510100486701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50510101010939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25255050505494 + 25255050505495.

It is an arithmetic number, because the mean of its divisors is an integer number (25255050505495).

Almost surely, 2^{50510101010989} is an apocalyptic number.

It is an amenable number.

50510101010989 is a deficient number, since it is larger than the sum of its proper divisors (1).

50510101010989 is an equidigital number, since it uses as much as digits as its factorization.

50510101010989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 40.

The spelling of 50510101010989 in words is "fifty trillion, five hundred ten billion, one hundred one million, ten thousand, nine hundred eighty-nine".