4839995781 has 32 divisors (see below), whose sum is σ = 7335034880. Its totient is φ = 3153327408.

The previous prime is 4839995759. The next prime is 4839995873. The reversal of 4839995781 is 1875999384.

It is not a de Polignac number, because 4839995781 - 2⁶ = 4839995717 is a prime.

It is a super-2 number, since 2×4839995781² = 46851118320195599922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4839995701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219210 + ... + 240276.

It is an arithmetic number, because the mean of its divisors is an integer number (229219840).

Almost surely, 2^4839995781 is an apocalyptic number.

It is an amenable number.

4839995781 is a deficient number, since it is larger than the sum of its proper divisors (2495039099).

4839995781 is a wasteful number, since it uses less digits than its factorization.

4839995781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21270 (or 21264 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The square root of 4839995781 is about 69570.0782017672. The cubic root of 4839995781 is about 1691.5376201215.

The spelling of 4839995781 in words is "four billion, eight hundred thirty-nine million, nine hundred ninety-five thousand, seven hundred eighty-one".