806717812151 has 4 divisors (see below), whose sum is σ = 806720599872. Its totient is φ = 806715024432.

The previous prime is 806717812091. The next prime is 806717812169. The reversal of 806717812151 is 151218717608.

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 806717812151 - 2¹⁰ = 806717811127 is a prime.

It is a super-2 number, since 2×806717812151² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 806717812096 and 806717812105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800717812151) 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, 901910 + ... + 1557843.

It is an arithmetic number, because the mean of its divisors is an integer number (201680149968).

Almost surely, 2^806717812151 is an apocalyptic number.

806717812151 is a deficient number, since it is larger than the sum of its proper divisors (2787721).

806717812151 is a wasteful number, since it uses less digits than its factorization.

806717812151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787720.

The product of its (nonzero) digits is 188160, while the sum is 47.

The spelling of 806717812151 in words is "eight hundred six billion, seven hundred seventeen million, eight hundred twelve thousand, one hundred fifty-one".