4681621808 has 10 divisors (see below), whose sum is σ = 9070642284. Its totient is φ = 2340810896.

The previous prime is 4681621787. The next prime is 4681621909. The reversal of 4681621808 is 8081261864.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 146300666 + ... + 146300697.

Almost surely, 2^4681621808 is an apocalyptic number.

It is an amenable number.

4681621808 is a deficient number, since it is larger than the sum of its proper divisors (4389020476).

4681621808 is a wasteful number, since it uses less digits than its factorization.

4681621808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292601371 (or 292601365 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 4681621808 is about 68422.3779767994. The cubic root of 4681621808 is about 1672.8825171733.

The spelling of 4681621808 in words is "four billion, six hundred eighty-one million, six hundred twenty-one thousand, eight hundred eight".