4745351621 has 2 divisors, whose sum is σ = 4745351622. Its totient is φ = 4745351620.

The previous prime is 4745351561. The next prime is 4745351671. The reversal of 4745351621 is 1261535474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4533328900 + 212022721 = 67330^2 + 14561^2 .

It is a cyclic number.

It is not a de Polignac number, because 4745351621 - 2⁶ = 4745351557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4745351671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2372675810 + 2372675811.

It is an arithmetic number, because the mean of its divisors is an integer number (2372675811).

Almost surely, 2^4745351621 is an apocalyptic number.

It is an amenable number.

4745351621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4745351621 is an equidigital number, since it uses as much as digits as its factorization.

4745351621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 38.

The square root of 4745351621 is about 68886.5126203962. The cubic root of 4745351621 is about 1680.4391828222.

The spelling of 4745351621 in words is "four billion, seven hundred forty-five million, three hundred fifty-one thousand, six hundred twenty-one".