4639391896 has 8 divisors (see below), whose sum is σ = 8698859820. Its totient is φ = 2319695944.

The previous prime is 4639391891. The next prime is 4639391903. The reversal of 4639391896 is 6981939364.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 4639391896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4639391891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289961986 + ... + 289962001.

Almost surely, 2^4639391896 is an apocalyptic number.

It is an amenable number.

4639391896 is a deficient number, since it is larger than the sum of its proper divisors (4059467924).

4639391896 is a wasteful number, since it uses less digits than its factorization.

4639391896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579923993 (or 579923989 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 58.

The square root of 4639391896 is about 68113.0816803938. The cubic root of 4639391896 is about 1667.8373161864.

The spelling of 4639391896 in words is "four billion, six hundred thirty-nine million, three hundred ninety-one thousand, eight hundred ninety-six".