806822872461 has 6 divisors (see below), whose sum is σ = 1165410815790. Its totient is φ = 537881914968.

The previous prime is 806822872447. The next prime is 806822872517. The reversal of 806822872461 is 164278228608.

806822872461 is a `hidden beast` number, since 80 + 6 + 8 + 22 + 87 + 2 + 461 = 666.

806822872461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 520951932900 + 285870939561 = 721770^2 + 534669^2 .

It is not a de Polignac number, because 806822872461 - 2¹³ = 806822864269 is a prime.

It is a super-3 number, since 3×806822872461³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 806822872398 and 806822872407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806822872421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44823492906 + ... + 44823492923.

It is an arithmetic number, because the mean of its divisors is an integer number (194235135965).

Almost surely, 2^806822872461 is an apocalyptic number.

It is an amenable number.

806822872461 is a deficient number, since it is larger than the sum of its proper divisors (358587943329).

806822872461 is a wasteful number, since it uses less digits than its factorization.

806822872461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89646985835 (or 89646985832 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 806822872461 in words is "eight hundred six billion, eight hundred twenty-two million, eight hundred seventy-two thousand, four hundred sixty-one".