798512371109 has 4 divisors (see below), whose sum is σ = 813578642316. Its totient is φ = 783446099904.

The previous prime is 798512371103. The next prime is 798512371147. The reversal of 798512371109 is 901173215897.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 233775151009 + 564737220100 = 483503^2 + 751490^2 .

It is a cyclic number.

It is not a de Polignac number, because 798512371109 - 2¹² = 798512367013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 15066271153 = 798512371109 / (7 + 9 + 8 + 5 + 1 + 2 + 3 + 7 + 1 + 1 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798512371103) 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, 7533135524 + ... + 7533135629.

It is an arithmetic number, because the mean of its divisors is an integer number (203394660579).

Almost surely, 2^798512371109 is an apocalyptic number.

It is an amenable number.

798512371109 is a deficient number, since it is larger than the sum of its proper divisors (15066271207).

798512371109 is a wasteful number, since it uses less digits than its factorization.

798512371109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15066271206.

The product of its (nonzero) digits is 952560, while the sum is 53.

The spelling of 798512371109 in words is "seven hundred ninety-eight billion, five hundred twelve million, three hundred seventy-one thousand, one hundred nine".