4921676787 has 4 divisors (see below), whose sum is σ = 6562235720. Its totient is φ = 3281117856.

The previous prime is 4921676741. The next prime is 4921676789. The reversal of 4921676787 is 7876761294.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4921676787 - 2¹¹ = 4921674739 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4921676789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820279462 + ... + 820279467.

It is an arithmetic number, because the mean of its divisors is an integer number (1640558930).

Almost surely, 2^4921676787 is an apocalyptic number.

4921676787 is a deficient number, since it is larger than the sum of its proper divisors (1640558933).

4921676787 is a wasteful number, since it uses less digits than its factorization.

4921676787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640558932.

The product of its digits is 7112448, while the sum is 57.

The square root of 4921676787 is about 70154.6633303874. The cubic root of 4921676787 is about 1701.0001942351. Note that the first 3 decimals are identical.

The spelling of 4921676787 in words is "four billion, nine hundred twenty-one million, six hundred seventy-six thousand, seven hundred eighty-seven".