6456958138 has 16 divisors (see below), whose sum is σ = 10203606720. Its totient is φ = 3056036256.

The previous prime is 6456958127. The next prime is 6456958169. The reversal of 6456958138 is 8318596546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22995 + ... + 115942.

It is an arithmetic number, because the mean of its divisors is an integer number (637725420).

Almost surely, 2^6456958138 is an apocalyptic number.

6456958138 is a deficient number, since it is larger than the sum of its proper divisors (3746648582).

6456958138 is a wasteful number, since it uses less digits than its factorization.

6456958138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140181.

The product of its digits is 6220800, while the sum is 55.

The square root of 6456958138 is about 80355.1998193023. The cubic root of 6456958138 is about 1862.1271130624.

The spelling of 6456958138 in words is "six billion, four hundred fifty-six million, nine hundred fifty-eight thousand, one hundred thirty-eight".