4638454986 has 16 divisors (see below), whose sum is σ = 10120265568. Its totient is φ = 1405592400.

The previous prime is 4638454903. The next prime is 4638455053. The reversal of 4638454986 is 6894548364.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35139745 + ... + 35139876.

It is an arithmetic number, because the mean of its divisors is an integer number (632516598).

Almost surely, 2^4638454986 is an apocalyptic number.

4638454986 is an abundant number, since it is smaller than the sum of its proper divisors (5481810582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4638454986 is a wasteful number, since it uses less digits than its factorization.

4638454986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70279637.

The product of its digits is 19906560, while the sum is 57.

The square root of 4638454986 is about 68106.2037262392. The cubic root of 4638454986 is about 1667.7250371999.

The spelling of 4638454986 in words is "four billion, six hundred thirty-eight million, four hundred fifty-four thousand, nine hundred eighty-six".