4685837621 has 2 divisors, whose sum is σ = 4685837622. Its totient is φ = 4685837620.

The previous prime is 4685837501. The next prime is 4685837641. The reversal of 4685837621 is 1267385864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4571112100 + 114725521 = 67610^2 + 10711^2 .

It is a cyclic number.

It is not a de Polignac number, because 4685837621 - 2²⁶ = 4618728757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4685837621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4685837641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2342918810 + 2342918811.

It is an arithmetic number, because the mean of its divisors is an integer number (2342918811).

Almost surely, 2^4685837621 is an apocalyptic number.

It is an amenable number.

4685837621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4685837621 is an equidigital number, since it uses as much as digits as its factorization.

4685837621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 50.

The square root of 4685837621 is about 68453.1783118943. The cubic root of 4685837621 is about 1673.3845115862.

The spelling of 4685837621 in words is "four billion, six hundred eighty-five million, eight hundred thirty-seven thousand, six hundred twenty-one".