6427564078 has 16 divisors (see below), whose sum is σ = 10389556800. Its totient is φ = 2964691296.

The previous prime is 6427564063. The next prime is 6427564103. The reversal of 6427564078 is 8704657246.

It is a congruent 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, 35878 + ... + 118921.

It is an arithmetic number, because the mean of its divisors is an integer number (649347300).

Almost surely, 2^6427564078 is an apocalyptic number.

6427564078 is a deficient number, since it is larger than the sum of its proper divisors (3961992722).

6427564078 is a wasteful number, since it uses less digits than its factorization.

6427564078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156411.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The square root of 6427564078 is about 80172.0903931038. The cubic root of 6427564078 is about 1859.2971559221.

The spelling of 6427564078 in words is "six billion, four hundred twenty-seven million, five hundred sixty-four thousand, seventy-eight".