75226543961 has 2 divisors, whose sum is σ = 75226543962. Its totient is φ = 75226543960.

The previous prime is 75226543939. The next prime is 75226544027. The reversal of 75226543961 is 16934562257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68759328400 + 6467215561 = 262220^2 + 80419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75226543961 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (75226543901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37613271980 + 37613271981.

It is an arithmetic number, because the mean of its divisors is an integer number (37613271981).

Almost surely, 2^75226543961 is an apocalyptic number.

It is an amenable number.

75226543961 is a deficient number, since it is larger than the sum of its proper divisors (1).

75226543961 is an equidigital number, since it uses as much as digits as its factorization.

75226543961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 50.

The spelling of 75226543961 in words is "seventy-five billion, two hundred twenty-six million, five hundred forty-three thousand, nine hundred sixty-one".