4845757561 has 2 divisors, whose sum is σ = 4845757562. Its totient is φ = 4845757560.

The previous prime is 4845757489. The next prime is 4845757649. The reversal of 4845757561 is 1657575484.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4688003961 + 157753600 = 68469^2 + 12560^2 .

It is a cyclic number.

It is not a de Polignac number, because 4845757561 - 2³¹ = 2698273913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4845757499 and 4845757508.

It is not a weakly prime, because it can be changed into another prime (4845754561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2422878780 + 2422878781.

It is an arithmetic number, because the mean of its divisors is an integer number (2422878781).

Almost surely, 2^4845757561 is an apocalyptic number.

It is an amenable number.

4845757561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4845757561 is an equidigital number, since it uses as much as digits as its factorization.

4845757561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704000, while the sum is 52.

The square root of 4845757561 is about 69611.4757852468. The cubic root of 4845757561 is about 1692.2085850796.

The spelling of 4845757561 in words is "four billion, eight hundred forty-five million, seven hundred fifty-seven thousand, five hundred sixty-one".