989461005499 has 2 divisors, whose sum is σ = 989461005500. Its totient is φ = 989461005498.

The previous prime is 989461005479. The next prime is 989461005509. The reversal of 989461005499 is 994500164989.

989461005499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 989461005499 - 2¹¹ = 989461003451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 989461005499.

It is not a weakly prime, because it can be changed into another prime (989461005479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494730502749 + 494730502750.

It is an arithmetic number, because the mean of its divisors is an integer number (494730502750).

Almost surely, 2^989461005499 is an apocalyptic number.

989461005499 is a deficient number, since it is larger than the sum of its proper divisors (1).

989461005499 is an equidigital number, since it uses as much as digits as its factorization.

989461005499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25194240, while the sum is 64.

The spelling of 989461005499 in words is "nine hundred eighty-nine billion, four hundred sixty-one million, five thousand, four hundred ninety-nine".