806406464464 has 10 divisors (see below), whose sum is σ = 1562412524930. Its totient is φ = 403203232224.

The previous prime is 806406464459. The next prime is 806406464489. The reversal of 806406464464 is 464464604608.

It can be written as a sum of positive squares in only one way, i.e., 776583937600 + 29822526864 = 881240^2 + 172692^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25200201999 + ... + 25200202030.

It is an arithmetic number, because the mean of its divisors is an integer number (156241252493).

Almost surely, 2^806406464464 is an apocalyptic number.

It is an amenable number.

806406464464 is a deficient number, since it is larger than the sum of its proper divisors (756006060466).

806406464464 is a wasteful number, since it uses less digits than its factorization.

806406464464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50400404037 (or 50400404031 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 52.

The spelling of 806406464464 in words is "eight hundred six billion, four hundred six million, four hundred sixty-four thousand, four hundred sixty-four".