4621999873 has 2 divisors, whose sum is σ = 4621999874. Its totient is φ = 4621999872.

The previous prime is 4621999861. The next prime is 4621999897. The reversal of 4621999873 is 3789991264.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4545051889 + 76947984 = 67417^2 + 8772^2 .

It is a cyclic number.

It is not a de Polignac number, because 4621999873 - 2⁵ = 4621999841 is a prime.

It is a super-2 number, since 2×4621999873² = 42725765652024032258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4621999843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2310999936 + 2310999937.

It is an arithmetic number, because the mean of its divisors is an integer number (2310999937).

Almost surely, 2^4621999873 is an apocalyptic number.

It is an amenable number.

4621999873 is a deficient number, since it is larger than the sum of its proper divisors (1).

4621999873 is an equidigital number, since it uses as much as digits as its factorization.

4621999873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 58.

The square root of 4621999873 is about 67985.2915931086. The cubic root of 4621999873 is about 1665.7505924482.

The spelling of 4621999873 in words is "four billion, six hundred twenty-one million, nine hundred ninety-nine thousand, eight hundred seventy-three".