7805397813 has 8 divisors (see below), whose sum is σ = 10443972768. Its totient is φ = 5185210704.

The previous prime is 7805397793. The next prime is 7805397823. The reversal of 7805397813 is 3187935087.

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

It is not a de Polignac number, because 7805397813 - 2¹³ = 7805389621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7805397823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4595970 + ... + 4597667.

It is an arithmetic number, because the mean of its divisors is an integer number (1305496596).

Almost surely, 2^7805397813 is an apocalyptic number.

It is an amenable number.

7805397813 is a deficient number, since it is larger than the sum of its proper divisors (2638574955).

7805397813 is a wasteful number, since it uses less digits than its factorization.

7805397813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9193923.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The square root of 7805397813 is about 88348.1624766469. The cubic root of 7805397813 is about 1983.6498516445.

The spelling of 7805397813 in words is "seven billion, eight hundred five million, three hundred ninety-seven thousand, eight hundred thirteen".