4612881861 has 48 divisors (see below), whose sum is σ = 7774475904. Its totient is φ = 2581172352.

The previous prime is 4612881773. The next prime is 4612881877. The reversal of 4612881861 is 1681882164.

4612881861 is a `hidden beast` number, since 461 + 2 + 8 + 8 + 186 + 1 = 666.

It is not a de Polignac number, because 4612881861 - 2⁷ = 4612881733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4612889861) 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 47 ways as a sum of consecutive naturals, for example, 727075 + ... + 733391.

It is an arithmetic number, because the mean of its divisors is an integer number (161968248).

Almost surely, 2^4612881861 is an apocalyptic number.

It is an amenable number.

4612881861 is a deficient number, since it is larger than the sum of its proper divisors (3161594043).

4612881861 is a wasteful number, since it uses less digits than its factorization.

4612881861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570 (or 6567 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 4612881861 is about 67918.1997773793. The cubic root of 4612881861 is about 1664.6545061347.

The spelling of 4612881861 in words is "four billion, six hundred twelve million, eight hundred eighty-one thousand, eight hundred sixty-one".