6387456906 has 16 divisors (see below), whose sum is σ = 14194348800. Its totient is φ = 2129152284.

The previous prime is 6387456899. The next prime is 6387456961. The reversal of 6387456906 is 6096547836.

6387456906 is a `hidden beast` number, since 6 + 3 + 8 + 74 + 569 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 118286239 = 6387456906 / (6 + 3 + 8 + 7 + 4 + 5 + 6 + 9 + 0 + 6).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59143066 + ... + 59143173.

It is an arithmetic number, because the mean of its divisors is an integer number (887146800).

Almost surely, 2^6387456906 is an apocalyptic number.

6387456906 is an abundant number, since it is smaller than the sum of its proper divisors (7806891894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6387456906 is a wasteful number, since it uses less digits than its factorization.

6387456906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118286250 (or 118286244 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 6387456906 is about 79921.5672143634. The cubic root of 6387456906 is about 1855.4218259293.

The spelling of 6387456906 in words is "six billion, three hundred eighty-seven million, four hundred fifty-six thousand, nine hundred six".