4640662673 has 2 divisors, whose sum is σ = 4640662674. Its totient is φ = 4640662672.

The previous prime is 4640662589. The next prime is 4640662709. The reversal of 4640662673 is 3762660464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3970008064 + 670654609 = 63008^2 + 25897^2 .

It is a cyclic number.

It is not a de Polignac number, because 4640662673 - 2³² = 345695377 is a prime.

It is not a weakly prime, because it can be changed into another prime (4640662373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320331336 + 2320331337.

It is an arithmetic number, because the mean of its divisors is an integer number (2320331337).

Almost surely, 2^4640662673 is an apocalyptic number.

It is an amenable number.

4640662673 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640662673 is an equidigital number, since it uses as much as digits as its factorization.

4640662673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 44.

The square root of 4640662673 is about 68122.4094773519. The cubic root of 4640662673 is about 1667.9895815310.

The spelling of 4640662673 in words is "four billion, six hundred forty million, six hundred sixty-two thousand, six hundred seventy-three".