1298098785107 has 4 divisors (see below), whose sum is σ = 1298107097040. Its totient is φ = 1298090473176.

The previous prime is 1298098785103. The next prime is 1298098785143. The reversal of 1298098785107 is 7015878908921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1298098785107 - 2² = 1298098785103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1298098785103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3917132 + ... + 4235577.

It is an arithmetic number, because the mean of its divisors is an integer number (324526774260).

Almost surely, 2^{1298098785107} is an apocalyptic number.

1298098785107 is a deficient number, since it is larger than the sum of its proper divisors (8311933).

1298098785107 is an equidigital number, since it uses as much as digits as its factorization.

1298098785107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8311932.

The product of its (nonzero) digits is 20321280, while the sum is 65.

The spelling of 1298098785107 in words is "one trillion, two hundred ninety-eight billion, ninety-eight million, seven hundred eighty-five thousand, one hundred seven".