806435547478 has 32 divisors (see below), whose sum is σ = 1320959757312. Its totient is φ = 366190178400.

The previous prime is 806435547371. The next prime is 806435547493. The reversal of 806435547478 is 874745534608.

It is a super-2 number, since 2×806435547478² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 160546075 + ... + 160551097.

It is an arithmetic number, because the mean of its divisors is an integer number (41279992416).

Almost surely, 2^806435547478 is an apocalyptic number.

806435547478 is a deficient number, since it is larger than the sum of its proper divisors (514524209834).

806435547478 is a wasteful number, since it uses less digits than its factorization.

806435547478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10980.

The product of its (nonzero) digits is 90316800, while the sum is 61.

The spelling of 806435547478 in words is "eight hundred six billion, four hundred thirty-five million, five hundred forty-seven thousand, four hundred seventy-eight".