6478434087 has 8 divisors (see below), whose sum is σ = 8695117440. Its totient is φ = 4290353400.

The previous prime is 6478434071. The next prime is 6478434089. The reversal of 6478434087 is 7804348746.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6478434087 - 2⁴ = 6478434071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6478434089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7150137 + ... + 7151042.

It is an arithmetic number, because the mean of its divisors is an integer number (1086889680).

Almost surely, 2^6478434087 is an apocalyptic number.

6478434087 is a deficient number, since it is larger than the sum of its proper divisors (2216683353).

6478434087 is a wasteful number, since it uses less digits than its factorization.

6478434087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14301333.

The product of its (nonzero) digits is 3612672, while the sum is 51.

The square root of 6478434087 is about 80488.7202470011. The cubic root of 6478434087 is about 1864.1893169130.

The spelling of 6478434087 in words is "six billion, four hundred seventy-eight million, four hundred thirty-four thousand, eighty-seven".