7907812969009 has 4 divisors (see below), whose sum is σ = 8100686456100. Its totient is φ = 7714939481920.

The previous prime is 7907812969003. The next prime is 7907812969019. The reversal of 7907812969009 is 9009692187097.

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 2437570257984 + 5470242711025 = 1561272^2 + 2338855^2 .

It is a cyclic number.

It is not a de Polignac number, because 7907812969009 - 2²⁷ = 7907678751281 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7907812969003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96436743484 + ... + 96436743565.

It is an arithmetic number, because the mean of its divisors is an integer number (2025171614025).

Almost surely, 2^{7907812969009} is an apocalyptic number.

It is an amenable number.

7907812969009 is a deficient number, since it is larger than the sum of its proper divisors (192873487091).

7907812969009 is a wasteful number, since it uses less digits than its factorization.

7907812969009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192873487090.

The product of its (nonzero) digits is 30862944, while the sum is 67.

The spelling of 7907812969009 in words is "seven trillion, nine hundred seven billion, eight hundred twelve million, nine hundred sixty-nine thousand, nine".