4461861890 has 32 divisors (see below), whose sum is σ = 8226985536. Its totient is φ = 1741360320.

The previous prime is 4461861829. The next prime is 4461861907. The reversal of 4461861890 is 981681644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433949 + ... + 444111.

It is an arithmetic number, because the mean of its divisors is an integer number (257093298).

Almost surely, 2^4461861890 is an apocalyptic number.

4461861890 is a deficient number, since it is larger than the sum of its proper divisors (3765123646).

4461861890 is a wasteful number, since it uses less digits than its factorization.

4461861890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11234.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 4461861890 is about 66797.1697753730. The cubic root of 4461861890 is about 1646.2863390747.

The spelling of 4461861890 in words is "four billion, four hundred sixty-one million, eight hundred sixty-one thousand, eight hundred ninety".