6478132874 has 4 divisors (see below), whose sum is σ = 9717199314. Its totient is φ = 3239066436.

The previous prime is 6478132861. The next prime is 6478132909. The reversal of 6478132874 is 4782318746.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3545368849 + 2932764025 = 59543^2 + 54155^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1619533217 + ... + 1619533220.

Almost surely, 2^6478132874 is an apocalyptic number.

6478132874 is a deficient number, since it is larger than the sum of its proper divisors (3239066440).

6478132874 is a wasteful number, since it uses less digits than its factorization.

6478132874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239066439.

The product of its digits is 1806336, while the sum is 50.

The square root of 6478132874 is about 80486.8490748644. The cubic root of 6478132874 is about 1864.1604248098.

The spelling of 6478132874 in words is "six billion, four hundred seventy-eight million, one hundred thirty-two thousand, eight hundred seventy-four".