5430210625661 has 2 divisors, whose sum is σ = 5430210625662. Its totient is φ = 5430210625660.

The previous prime is 5430210625643. The next prime is 5430210625673. The reversal of 5430210625661 is 1665260120345.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5363346492100 + 66864133561 = 2315890^2 + 258581^2 .

It is a cyclic number.

It is not a de Polignac number, because 5430210625661 - 2³⁸ = 5155332718717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5430210625061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2715105312830 + 2715105312831.

It is an arithmetic number, because the mean of its divisors is an integer number (2715105312831).

Almost surely, 2^{5430210625661} is an apocalyptic number.

It is an amenable number.

5430210625661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5430210625661 is an equidigital number, since it uses as much as digits as its factorization.

5430210625661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 5430210625661 in words is "five trillion, four hundred thirty billion, two hundred ten million, six hundred twenty-five thousand, six hundred sixty-one".