4885885861 has 2 divisors, whose sum is σ = 4885885862. Its totient is φ = 4885885860.

The previous prime is 4885885841. The next prime is 4885885889. The reversal of 4885885861 is 1685885884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4280430625 + 605455236 = 65425^2 + 24606^2 .

It is a cyclic number.

It is not a de Polignac number, because 4885885861 - 2¹³ = 4885877669 is a prime.

It is a super-2 number, since 2×4885885861² = 47743761293439422642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4885885861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4885885801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2442942930 + 2442942931.

It is an arithmetic number, because the mean of its divisors is an integer number (2442942931).

Almost surely, 2^4885885861 is an apocalyptic number.

It is an amenable number.

4885885861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4885885861 is an equidigital number, since it uses as much as digits as its factorization.

4885885861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19660800, while the sum is 61.

The square root of 4885885861 is about 69899.1120186802. The cubic root of 4885885861 is about 1696.8668774887.

The spelling of 4885885861 in words is "four billion, eight hundred eighty-five million, eight hundred eighty-five thousand, eight hundred sixty-one".