99390291020749 has 2 divisors, whose sum is σ = 99390291020750. Its totient is φ = 99390291020748.

The previous prime is 99390291020729. The next prime is 99390291020789. The reversal of 99390291020749 is 94702019209399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89632476958249 + 9757814062500 = 9467443^2 + 3123750^2 .

It is a cyclic number.

It is not a de Polignac number, because 99390291020749 - 2¹⁷ = 99390290889677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99390291020729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49695145510374 + 49695145510375.

It is an arithmetic number, because the mean of its divisors is an integer number (49695145510375).

Almost surely, 2^{99390291020749} is an apocalyptic number.

It is an amenable number.

99390291020749 is a deficient number, since it is larger than the sum of its proper divisors (1).

99390291020749 is an equidigital number, since it uses as much as digits as its factorization.

99390291020749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19840464, while the sum is 64.

The spelling of 99390291020749 in words is "ninety-nine trillion, three hundred ninety billion, two hundred ninety-one million, twenty thousand, seven hundred forty-nine".