75474726032261 has 2 divisors, whose sum is σ = 75474726032262. Its totient is φ = 75474726032260.

The previous prime is 75474726032221. The next prime is 75474726032309. The reversal of 75474726032261 is 16223062747457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67915828103236 + 7558897929025 = 8241106^2 + 2749345^2 .

It is a cyclic number.

It is not a de Polignac number, because 75474726032261 - 2¹⁸ = 75474725770117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75474726032197 and 75474726032206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75474726032221) 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, 37737363016130 + 37737363016131.

It is an arithmetic number, because the mean of its divisors is an integer number (37737363016131).

Almost surely, 2^{75474726032261} is an apocalyptic number.

It is an amenable number.

75474726032261 is a deficient number, since it is larger than the sum of its proper divisors (1).

75474726032261 is an equidigital number, since it uses as much as digits as its factorization.

75474726032261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23708160, while the sum is 56.

The spelling of 75474726032261 in words is "seventy-five trillion, four hundred seventy-four billion, seven hundred twenty-six million, thirty-two thousand, two hundred sixty-one".