4581626668 has 12 divisors (see below), whose sum is σ = 8019289152. Its totient is φ = 2290401200.

The previous prime is 4581626641. The next prime is 4581626681. The reversal of 4581626668 is 8666261854.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77308 + ... + 123043.

It is an arithmetic number, because the mean of its divisors is an integer number (668274096).

Almost surely, 2^4581626668 is an apocalyptic number.

It is an amenable number.

4581626668 is a deficient number, since it is larger than the sum of its proper divisors (3437662484).

4581626668 is a wasteful number, since it uses less digits than its factorization.

4581626668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206072 (or 206070 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The square root of 4581626668 is about 67687.7143062166. The cubic root of 4581626668 is about 1660.8862867727.

The spelling of 4581626668 in words is "four billion, five hundred eighty-one million, six hundred twenty-six thousand, six hundred sixty-eight".