99309240247769 has 8 divisors (see below), whose sum is σ = 101887207704072. Its totient is φ = 96738691404160.

The previous prime is 99309240247759. The next prime is 99309240247783. The reversal of 99309240247769 is 96774204290399.

It can be written as a sum of positive squares in 4 ways, for example, as 9966573232144 + 89342667015625 = 3156988^2 + 9452125^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99309240247769 - 2¹² = 99309240243673 is a prime.

It is a super-2 number, since 2×99309240247769² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99309240247759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854626054 + ... + 1854679599.

It is an arithmetic number, because the mean of its divisors is an integer number (12735900963009).

Almost surely, 2^{99309240247769} is an apocalyptic number.

It is an amenable number.

99309240247769 is a deficient number, since it is larger than the sum of its proper divisors (2577967456303).

99309240247769 is a wasteful number, since it uses less digits than its factorization.

99309240247769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709306347.

The product of its (nonzero) digits is 370355328, while the sum is 71.

The spelling of 99309240247769 in words is "ninety-nine trillion, three hundred nine billion, two hundred forty million, two hundred forty-seven thousand, seven hundred sixty-nine".