6428885005 has 32 divisors (see below), whose sum is σ = 7899714144. Its totient is φ = 5021761536.

The previous prime is 6428884999. The next prime is 6428885041. The reversal of 6428885005 is 5005888246.

It can be written as a sum of positive squares in 16 ways, for example, as 553049289 + 5875835716 = 23517^2 + 76654^2 .

It is a cyclic number.

It is not a de Polignac number, because 6428885005 - 2⁹ = 6428884493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16193467 + ... + 16193863.

It is an arithmetic number, because the mean of its divisors is an integer number (246866067).

Almost surely, 2^6428885005 is an apocalyptic number.

It is an amenable number.

6428885005 is a deficient number, since it is larger than the sum of its proper divisors (1470829139).

6428885005 is a wasteful number, since it uses less digits than its factorization.

6428885005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its (nonzero) digits is 614400, while the sum is 46.

The square root of 6428885005 is about 80180.3280424818. The cubic root of 6428885005 is about 1859.4245150875.

The spelling of 6428885005 in words is "six billion, four hundred twenty-eight million, eight hundred eighty-five thousand, five".