989963524141 has 2 divisors, whose sum is σ = 989963524142. Its totient is φ = 989963524140.

The previous prime is 989963524093. The next prime is 989963524237. The reversal of 989963524141 is 141425369989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 735170771241 + 254792752900 = 857421^2 + 504770^2 .

It is a cyclic number.

It is not a de Polignac number, because 989963524141 - 2⁷ = 989963524013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 989963524141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989963504141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494981762070 + 494981762071.

It is an arithmetic number, because the mean of its divisors is an integer number (494981762071).

Almost surely, 2^989963524141 is an apocalyptic number.

It is an amenable number.

989963524141 is a deficient number, since it is larger than the sum of its proper divisors (1).

989963524141 is an equidigital number, since it uses as much as digits as its factorization.

989963524141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16796160, while the sum is 61.

The spelling of 989963524141 in words is "nine hundred eighty-nine billion, nine hundred sixty-three million, five hundred twenty-four thousand, one hundred forty-one".