806540456475 has 36 divisors (see below), whose sum is σ = 1555726930576. Its totient is φ = 397066069440.

The previous prime is 806540456429. The next prime is 806540456479. The reversal of 806540456475 is 574654045608.

806540456475 is a `hidden beast` number, since 8 + 0 + 6 + 5 + 4 + 0 + 4 + 564 + 75 = 666.

It is not a de Polignac number, because 806540456475 - 2⁶ = 806540456411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (806540456479) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 137867239 + ... + 137873088.

Almost surely, 2^806540456475 is an apocalyptic number.

806540456475 is a deficient number, since it is larger than the sum of its proper divisors (749186474101).

806540456475 is a wasteful number, since it uses less digits than its factorization.

806540456475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275740356 (or 275740348 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 54.

The spelling of 806540456475 in words is "eight hundred six billion, five hundred forty million, four hundred fifty-six thousand, four hundred seventy-five".