4861981605 has 16 divisors (see below), whose sum is σ = 8377568640. Its totient is φ = 2393590848.

The previous prime is 4861981571. The next prime is 4861981639. The reversal of 4861981605 is 5061891684.

4861981605 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4861981571) and next prime (4861981639).

It is not a de Polignac number, because 4861981605 - 2⁹ = 4861981093 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12466425 + ... + 12466814.

It is an arithmetic number, because the mean of its divisors is an integer number (523598040).

Almost surely, 2^4861981605 is an apocalyptic number.

It is an amenable number.

4861981605 is a deficient number, since it is larger than the sum of its proper divisors (3515587035).

4861981605 is a wasteful number, since it uses less digits than its factorization.

4861981605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24933260.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 4861981605 is about 69727.9112335943. The cubic root of 4861981605 is about 1694.0950381973.

The spelling of 4861981605 in words is "four billion, eight hundred sixty-one million, nine hundred eighty-one thousand, six hundred five".