4640681860 has 12 divisors (see below), whose sum is σ = 9745431948. Its totient is φ = 1856272736.

The previous prime is 4640681849. The next prime is 4640681861. The reversal of 4640681860 is 681860464.

It can be written as a sum of positive squares in 2 ways, for example, as 2650808196 + 1989873664 = 51486^2 + 44608^2 .

It is not an unprimeable number, because it can be changed into a prime (4640681861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116017027 + ... + 116017066.

It is an arithmetic number, because the mean of its divisors is an integer number (812119329).

Almost surely, 2^4640681860 is an apocalyptic number.

It is an amenable number.

4640681860 is an abundant number, since it is smaller than the sum of its proper divisors (5104750088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4640681860 is a wasteful number, since it uses less digits than its factorization.

4640681860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232034102 (or 232034100 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 4640681860 is about 68122.5503045798. The cubic root of 4640681860 is about 1667.9918803171.

The spelling of 4640681860 in words is "four billion, six hundred forty million, six hundred eighty-one thousand, eight hundred sixty".