4627856639 has 16 divisors (see below), whose sum is σ = 5439244800. Its totient is φ = 3854964960.

The previous prime is 4627856617. The next prime is 4627856693. The reversal of 4627856639 is 9366587264.

It is a happy number.

It is not a de Polignac number, because 4627856639 - 2⁸ = 4627856383 is a prime.

It is a super-2 number, since 2×4627856639² = 42834114142272752642, which contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4627856839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21269 + ... + 98529.

It is an arithmetic number, because the mean of its divisors is an integer number (339952800).

Almost surely, 2^4627856639 is an apocalyptic number.

4627856639 is a deficient number, since it is larger than the sum of its proper divisors (811388161).

4627856639 is a wasteful number, since it uses less digits than its factorization.

4627856639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77510.

The product of its digits is 13063680, while the sum is 56.

The square root of 4627856639 is about 68028.3517292606. The cubic root of 4627856639 is about 1666.4538806255.

The spelling of 4627856639 in words is "four billion, six hundred twenty-seven million, eight hundred fifty-six thousand, six hundred thirty-nine".