6478168436 has 12 divisors (see below), whose sum is σ = 11381963040. Its totient is φ = 3226179000.

The previous prime is 6478168391. The next prime is 6478168453. The reversal of 6478168436 is 6348618746.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3225176 + ... + 3227183.

It is an arithmetic number, because the mean of its divisors is an integer number (948496920).

Almost surely, 2^6478168436 is an apocalyptic number.

It is an amenable number.

6478168436 is a deficient number, since it is larger than the sum of its proper divisors (4903794604).

6478168436 is a wasteful number, since it uses less digits than its factorization.

6478168436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6452614 (or 6452612 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 53.

The square root of 6478168436 is about 80487.0699926392. The cubic root of 6478168436 is about 1864.1638359342.

The spelling of 6478168436 in words is "six billion, four hundred seventy-eight million, one hundred sixty-eight thousand, four hundred thirty-six".