806513974993 has 8 divisors (see below), whose sum is σ = 898901025120. Its totient is φ = 719120819520.

The previous prime is 806513974933. The next prime is 806513974997. The reversal of 806513974993 is 399479315608.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806513974993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806513974997) 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, 1248473323 + ... + 1248473968.

It is an arithmetic number, because the mean of its divisors is an integer number (112362628140).

Almost surely, 2^806513974993 is an apocalyptic number.

It is an amenable number.

806513974993 is a deficient number, since it is larger than the sum of its proper divisors (92387050127).

806513974993 is a wasteful number, since it uses less digits than its factorization.

806513974993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496947327.

The product of its (nonzero) digits is 44089920, while the sum is 64.

The spelling of 806513974993 in words is "eight hundred six billion, five hundred thirteen million, nine hundred seventy-four thousand, nine hundred ninety-three".